Methods and systems for detecting shading for solar trackers

A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.

Solar module clamp

A solar module configured in a frame assembly with multi-configuration attachment member(s), which has locking and unlocking characteristics.

Power converters and methods of controlling same

A power converter converts a medium-voltage output from a solar module to an appropriate voltage to power a solar tracker system. The power converter includes a voltage divider having at least two legs, a first semiconductor switch subassembly coupled in parallel with a first leg of the voltage divider, and a second semiconductor switch subassembly coupled in parallel with a second leg of the voltage divider. In implementations, the signals for driving the semiconductor switches of the first and second semiconductor switch subassemblies may be shifted out of phase from each other. In implementations, if the bus voltages to the semiconductor switches are not balanced, the pulse width of the driving signal of the semiconductor switch supplied with the higher bus voltage is decreased for at least one cycle.

SYSTEMS FOR AND METHODS OF AUTOMATICALLY SCHEDULING AND EXECUTING IN SITU TESTS ON ELECTRICAL AND MECHANICAL SYSTEMS

A testing platform tests an electrical and mechanical system such as an HVAC unit according to an algorithm that reduces the total testing time of the components of the system, while ensuring the safety of the system during system-wide testing. The platform uses constraints that are checked both before and during the testing to ensure that HVAC operating conditions are acceptable for starting and maintaining component tests. Preferably, the platform uses finite-state machines for each device to organize the component tests, allowing for monitoring of constraints and starting, pausing, and stopping component tests. Preferably, total test execution time is reduced by running component tests in parallel, running component tests based on loads of the components, or combinations of both. 1grouping the components into groups such that all components in each of the groups are able to be tested in parallel; anddynamically scheduling execution of the component tests based on criteria comprising the groupings and constraints for starting and maintaining execution of the component tests to minimize a total execution time of the component tests.. A method of testing an electrical and mechanical system comprising interconnected devices, each device comprising one or more components, each component tested using a corresponding component test, the method comprising: This patent application is a continuation of U.S. patent application Ser. No. 15/365,758 filed Nov. 30, 2016, now U.S. Pat. No. 10,578,327, which claims priority to U.S. Provisional Patent Application No. 62/261,205 filed Nov. 30, 2015, and titled “An Automated System for Scheduling and Executing In Situ Tests on Mechanical (HVAC) Systems,” which is hereby incorporated by reference in its entirety.This invention is related to testing systems. More particularly, this invention is related to in situ testing of electrical and mechanical systems, such as HVAC systems.Testing custom complex deployments presents a challenge ...

Solar tracker clamp

Systems for and methods of automatically scheduling and executing in situ tests on electrical and mechanical systems

A testing platform tests an electrical and mechanical system such as an HVAC unit according to an algorithm that reduces the total testing time of the components of the system, while ensuring the safety of the system during system-wide testing. The platform uses constraints that are checked both before and during the testing to ensure that HVAC operating conditions are acceptable for starting and maintaining component tests. Preferably, the platform uses finite-state machines for each device to organize the component tests, allowing for monitoring of constraints and starting, pausing, and stopping component tests. Preferably, total test execution time is reduced by running component tests in parallel, running component tests based on loads of the components, or combinations of both.

Balanced solar tracker clamp

In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.

Clip for mounting a solar module to a rail system

The present disclosure relates to a solar power system including at least one mounting assembly including a rail, at least one framed solar module, and at least one clip to secure the solar module to the rail. The clip includes at least a pair of sidewalls extending from a top plate or rear wall, each sidewall including a slot, a recess, and a locking member, at least one of the slot, recess, or both include a serrated edge. The clips may secure a solar module to the rail by coupling to the frame of the solar module to a rail of the mounting assembly within the slots of the sidewalls. The clips may be secured to the mounting assembly by locking members positioned on a distal end thereof. The clips may establish an electrical grounding connection between the frame of the solar module and the rail.

SENSING AND FEEDBACK FOR ROW ON SUN TRACKING METHOD AND SYSTEM

A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example. 1. (canceled)2. A solar power plant comprising:a solar tracker supporting a plurality of solar modules;a drive device coupled to the solar tracker and configured to rotate the solar tracker about an axis;a charging panel supported by the solar tracker and configured to power the drive device and to charge a battery supported by the solar tracker; and receive forecast data for the solar power plant;', 'determine, based on forecast data, a diffuse angle adjustment; and', 'output a signal to the drive device to rotate the solar tracker to a desired angle based on the diffuse angle adjustment., 'a controller in communication with a memory, the memory storing thereon instructions that when executed by the controller cause the controller to3. The solar power plant of claim 2 , wherein the diffuse angle adjustment modifies a solar tracker target angle based on a sun position angle.4. The solar power plant of claim 3 , wherein the diffuse angle adjustment is a gain factor applied to the solar tracker target angle.5. The solar power plant of claim 3 , wherein the controller further executes an instruction to determine whether the solar tracker is in a backtracking mode.6. The solar power plant of claim 5 , wherein when in a backtracking mode claim 5 , the diffuse angle adjustment is a diffuse backtracking angle adjustment.7. The solar power plant of claim 2 , wherein the forecast data is received periodically.8. The solar power plant of claim 2 , wherein the memory further stores a topography of the solar power plant.9. The solar power plant of claim 8 , further comprising a solar tracker target angle claim 8 , wherein the solar tracker target angle is determined based on the topography of the solar power plant.10. The solar power plant of claim 2 , further ...

CLAMP ASSEMBLY FOR SOLAR TRACKER

In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first anchoring region and a second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure and a torque tube suspending on the pivot device and aligned within an opening of the support and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction. 1. (canceled)2. A clamp assembly for a solar tracker comprising:a frame having a loop structure defining an opening, the opening including a first stop region and a second stop region, and at least one flat region extending between the first stop region and the second stop region;an anchor region configured to connect the frame to a support; anda pivot device operably connected to the fame and configured to support a torque tube and enable the torque tube to swing within the loop structure.3. The clamp assembly of claim 2 , wherein the pivot device includes a pin.4. The clamp assembly of claim 3 , further comprising a sleeve mounted in the fame and configured to receive the pin.5. The clamp assembly of claim 3 , further comprising a bearing mounted in the fame and configured to receive the pin.6. The clamp assembly of claim 3 , further comprising a U-bolt structure secured to the pin and configured to receive the torque tube.7. The clamp assembly of claim 6 , wherein the U-bolt structure includes a clamp member configured to receive the pin.8. The clamp assembly of claim 7 , wherein the clamp member ...

Multiple actuator system for solar tracker

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.

Helical actuator system for solar tracker

A solar tracking system is provided and includes a solar array, a plurality of support beams configured to support the solar array, a torque tube coupled to the plurality of support beams, a base configured to rotatably support the torque tube, and an articulation system configured to rotate the torque tube relative to the base. The articulation system includes a first helical tube coupled to the torque tube, a first helical tube support disposed on the base and configured to slidably support the first helical tube, and a gearbox in mechanical communication with the first helical tube. Actuation of the gearbox causes the first helical tube to translate within the first helical tube support and the first helical tube support is configured to rotate the first helical tube as the first helical tube is translated therein to cause a corresponding rotation of the solar array.

Solar module clamp

A solar module configured in a frame assembly with multi-configuration attachment member(s), which has locking and unlocking characteristics.

Method for predictive control of the orientation of a solar tracker

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including observing the evolution over time of the cloud coverage above the solar tracker; determining the evolution over time of an optimum inclination angle of the solar tracker substantially corresponding to a maximum of solar radiation on the solar tracker, depending on the observed cloud coverage; predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; servo-controlling the orientation of the solar tracker according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle.

Self-powered solar tracker apparatus

A solar tracker apparatus includes an adjustable hanger assembly that has a clam shell hanger assembly. The clam shell hanger assembly may hold a torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end. A center of mass of the solar tracker apparatus may be aligned with a center of rotation of the torque tubes, in order to reduce a load of a drive device operably coupled to the torque tube. Solar modules may be coupled to the torque tubes. The solar tracker includes an energy system that includes solar panel, a DC to DC converter, a battery, and a micro-controller. The energy system may facilitate full operation movement of the tracker apparatus without any external power lines.

SOLAR MODULE MOUNTING BRACKET ASSEMBLIES

A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member. 1. (canceled)2. A mounting bracket assembly , comprising:a rail having a longitudinal axis; anda pair of braces each having a first end portion movably coupled to the rail, wherein the pair of braces is movable relative to the rail between a collapsed configuration, where the pair of braces is parallel with the rail, and an expanded configuration, wherein the pair of braces is perpendicular to the rail, in which the pair of braces cooperatively define a channel dimensioned for receipt of a torque tube.3. The mounting bracket assembly according to claim 2 , wherein the mounting bracket assembly assumes a substantially linear shape when the pair of braces is in the collapsed configuration.4. The mounting bracket assembly according to claim 2 , wherein the mounting bracket assembly assumes a substantially triangular shape when the pair of braces is in the expanded configuration.5. The mounting bracket assembly according to claim 2 , further comprising a fastener configured to attach to a second end portion of each of the pair of braces to fix the pair of braces in the expanded configuration.6. The mounting bracket assembly according to claim 2 , further comprising a protuberance protruding downwardly relative to an underside of the rail claim 2 , wherein the protuberance extends into the channel defined by the pair of braces when the pair of braces is in the expanded configuration.7. The mounting bracket assembly according to claim 2 , further comprising a plurality of coupling devices disposed on an upper side of the rail claim 2 , wherein the plurality of ...

Systems for and methods of positioning solar panels in an array of solar panels to efficiently capture sunlight

A solar tracking system (200) comprises multiple solar panel modules (SPMi) forming a grid of solar panel modules, wherein the multiple solar panel modules (SPMi) are orientatable to a solar source independently of each other; and a control system (SPCi) configured to orient each of the multiple solar panel modules (SPMi) to the solar source independently of each other based on a performance model to optimize an energy output from the grid of solar panel modules, wherein the performance model predicts an energy output from the grid of solar panel modules based on a topography of the area containing the grid of solar panel modules and weather conditions local to each of the solar panel modules (SPMi).

STAGED STOWAGE OF SOLAR TRACKERS AND METHOD THEREOF

Methods and systems of managing dynamic response to wind in a solar tracker system are provided. The method includes determining a wind speed, comparing the wind speed to a predetermined threshold value to determine if the wind speed equals or exceeds the predetermined threshold, positioning a windward most solar tracker to a predetermined angle based on the comparing, and positioning a leeward most solar tracker to the predetermined angle based on the comparing. The solar trackers are positioned at the predetermined angle at a predetermined interval starting at the windward most solar tracker and the remaining solar trackers remain in a normal operating condition.

Clamp assembly for solar tracker

In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first anchoring region and a second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure and a torque tube suspending on the pivot device and aligned within an opening of the support and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.

MULTIPLE ACTUATOR SYSTEM FOR SOLAR TRACKER

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction. 1. (canceled)2. A solar tracker , comprising:a plurality of bases;a support structure rotatably supported on the plurality of bases, the support structure including at least one longitudinal beam and a plurality of transverse beam pairs, the plurality of transverse beam pairs oriented generally orthogonal to the at least one longitudinal beam;a plurality of gear boxes, each gear box supported by at least one of the plurality of transverse beam pairs;a drive shaft traversing a length of the support structure parallel to the at least one longitudinal beam and coupled to each of the plurality of gear boxes; andfor each gear box, an actuator mechanically coupled to the drive shaft via the gear box on one end and coupled to one of the plurality of bases on a second end, wherein the actuator includes a power screw which when driven by the drive shaft extends from or retracts into a body causing the support structure to rotate about an axis of rotation.3. The solar tracker of claim 2 , further comprising a motor coupled to the drive shaft.4. The solar tracker of claim 3 , wherein the motor is mounted to the support structure.5. The solar tracker of ...

Sensing and feedback for row on sun tracking method and system

A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.

Balanced solar tracker clamp

A solar tracker apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube.

Frameless solar module mounting

In an example, a clamp assembly for a glass on glass solar module for a tracker is included. The assembly has a lower clamp structure characterized by a top-hat shaped rail structure having a length extending from a first end to a second end. In an example, the assembly has an upper clamp structure configured to sandwich a pair of edges of a pair of solar modules with a portion of the lower clamp structure. In an example, the assembly has a locking spacer configured to the pair of edges of the pair of solar modules. In an example, the pair of edges comprises substantially glass material. In an example, the assembly has a pair of key structures configured with the locking spacer. Each of the key structures is affixed to each of the solar modules to physically lock each of the solar modules to the upper clamp structure.

Sensing and feedback for row on sun tracking method and system

A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.

Washing system for solar panels

A method and system for cleaning an array of solar panels. The system can include an applicator apparatus configured with a plurality of cleaning devices, and an automatic position system (APS) configured with the applicator apparatus. The APS can include a first and second sensor coupled to the applicator apparatus. A controller coupled to the first and second sensor devices can be configured to adjust a position of the applicator apparatus to maintain the plurality of cleaning devices in a direction facing a solar panel to facilitate a removal of an undesired material from the solar panel, while the applicator apparatus is moved from a first position to a second position. A mobile vehicle can be configured with the applicator apparatus to move along a row of the array of solar panels to perform the method for cleaning.

Mass damper for solar tracker

In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.

STRUCTURAL BEAM FOR SOLAR TRACKER

A solar system is provided and includes a solar array and a support structure configured to support the solar array. The support structure includes structural beam which includes an upper plate, a lower plate that is disposed opposite to the upper plate, a first side plate interposed between the upper and lower plates, and a second side plate interposed between the upper and lower plates and spaced apart from the first side plate. Each of the upper and lower plates is fixedly coupled to the first and second plates by a plurality of joints formed by clinching. 1. A solar system , comprising:a solar array; and an upper plate;', 'a lower plate disposed opposite to the upper plate;', 'a first side plate interposed between the upper and lower plates; and', 'a second side plate interposed between the upper and lower plates and spaced apart from the first side plate,', 'wherein each of the upper and lower plates is fixedly coupled to the first and second side plates by a plurality of joints formed by clinching., 'a support structure configured to support the solar array, wherein the support structure includes a structural beam, comprising2. The solar system according to claim 1 , wherein the solar tracking system includes a base configured to support the support structure.3. The solar system according to claim 1 , wherein the base is configured to rotatably support the support structure.4. The solar system according to claim 2 , wherein the base is formed from the structural beam.5. The solar system according to claim 2 , wherein the solar system includes a torque tube configured to support the support structure on the base.6. The solar according to claim 5 , wherein the torque tube is configured to rotatably support the support structure on the base.7. The solar system according to claim 5 , wherein the torque tube is formed from the structural beam.8. The solar system according to claim 1 , wherein the upper plate claim 1 , lower plate claim 1 , first side plate claim 1 ...

Washing system for solar panels

A method and system for cleaning an array of solar panels. The system can include an applicator apparatus configured with a plurality of cleaning devices, and an automatic position system (APS) configured with the applicator apparatus. The APS can include a first and second sensor coupled to the applicator apparatus. A controller coupled to the first and second sensor devices can be configured to adjust a position of the applicator apparatus to maintain the plurality of cleaning devices in a direction facing a solar panel to facilitate a removal of an undesired material from the solar panel, while the applicator apparatus is moved from a first position to a second position. A mobile vehicle can be configured with the applicator apparatus to move along a row of the array of solar panels to perform the method for cleaning.

Multi power source systems for photovoltaic battery control

A multi-power source system including a first power source, a second power source in a parallel with the first power source, and a diode preventing power from the second power source to drive the first power source but permitting the first power source to charge the second power source. The system also includes a controller operably coupled to both the first and second power sources, and a plurality of field effect transistor (FETs) arranged in series with one or more of the first power source, the second power source, and the load, wherein controller can switch the plurality of FETs to enable the first power source to drive the load or the second power source to drive the load.

Balanced solar tracker clamp

A solar tracker including a torque tube, a drive device connected to one end of the torque tube, a frame assembly coupled to the torque tube, the frame assembly arranged perpendicular to the axis of the torque tube and supporting a plurality of solar modules. The solar tracker further includes a clamp assembly having a housing coupled to the torque tube where the torque tube is coupled to the housing, the housing having an opening with a major plane normal to a length of the torque tube, the opening having an inner region that acts as a stop for the torque tube when moved in a first direction, and as a stop for the torque tube when moved in a second direction and the drive device is operable to move the torque tube about a center of rotation from a first position to a second position.

Off-set drive assembly for solar tracker

In an example, the present invention provides a solar tracker apparatus configured with an off-set drive assembly. In an example, the apparatus has an inner race structure, which has a cylindrical region coupled to a main body region, the main body comprising an off-set open region. The cylindrical region is an annular sleeve structure coupled to the main body region, which occupies the spatial region within the cylindrical region. In an example, the apparatus has an outer race structure coupled to enclose the inner race structure, configured to couple the inner race structure to allow the inner race structure to move in a rotational manner about a spatial arc region; and configured to allow the inner race structure to pivot about a region normal to a direction of the spatial arc region. In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube.

Solar module clamp

A solar module configured in a frame assembly with multi-configuration attachment member(s), which has locking and unlocking characteristics.

Solar tracker clamp

Method for controlling the orientation of a solar tracker based on cartographic models

A method for controlling the orientation of a single-axis solar tracker (1) orientable about an axis of rotation (A), said method repetitively completing successive control phases, where each control phase implements the following successive steps: a) observing the cloud coverage above the solar tracker (1); b) comparing the observed cloud coverage with cloud coverage models stored in a database, each cloud coverage model being associated to an orientation setpoint value of the solar tracker; c) matching the observed cloud coverage with a cloud coverage model; d) servo-controlling the orientation of the solar tracker by applying the orientation setpoint value associated to said cloud coverage model retained during step c). The present invention finds application in the field of solar trackers.

Solar module mounting system

A solar module mounting bracket system including a plurality of solar modules including mounting slots formed in a sidewall of the solar module, a torque tube configured to support the solar modules such that they can be rotated, a plurality of mounting brackets configured for integration with the torque tube and to which the plurality of solar modules are mounted, at least one first retainer assembly connected to one of the plurality of mounting brackets, the first retainer assembly including a through bolt, a spring, a mounting tab, and nut. When a solar module is placed on the mounting bracket and supported by the torque tube the mounting tab retainer assembly is received in the mounting slot of the solar module.

Balanced solar tracker clamp

In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.

Sensing and feedback for row on sun tracking method and system

A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.

Horizontal balanced solar tracker

In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.

HELICAL ACTUATOR SYSTEM FOR SOLAR TRACKER

A solar tracking system is provided and includes a solar array, a plurality of support beams configured to support the solar array, a torque tube coupled to the plurality of support beams, a base configured to rotatably support the torque tube, and an articulation system configured to rotate the torque tube relative to the base. The articulation system includes a first helical tube coupled to the torque tube, a first helical tube support disposed on the base and configured to slidably support the first helical tube, and a gearbox in mechanical communication with the first helical tube. Actuation of the gearbox causes the first helical tube to translate within the first helical tube support and the first helical tube support is configured to rotate the first helical tube as the first helical tube is translated therein to cause a corresponding rotation of the solar array.

Frameless solar module mounting

In an example, a clamp assembly for a glass on glass solar module for a tracker is included. The assembly has a lower clamp structure characterized by a top-hat shaped rail structure having a length extending from a first end to a second end. In an example, the assembly has an upper clamp structure configured to sandwich a pair of edges of a pair of solar modules with a portion of the lower clamp structure. In an example, the assembly has a locking spacer configured to the pair of edges of the pair of solar modules. In an example, the pair of edges comprises substantially glass material. In an example, the assembly has a pair of key structures configured with the locking spacer. Each of the key structures is affixed to each of the solar modules to physically lock each of the solar modules to the upper clamp structure.

Mass damper for solar tracker

In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.

METHODS AND SYSTEMS FOR DETECTING SHADING FOR SOLAR TRACKERS

A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.

Solar array with reference solar power plant for improved management

Solar array (1) comprising solar modules (3) distributed in rows (10), each solar module comprising solar collector (5) carried by a single-axis solar tracker (4), a reference solar power plant (2) comprising a central reference solar module and at least one secondary reference solar module, and a piloting unit (7) adapted for: piloting the angular orientation of the central reference module according to a central reference orientation setpoint corresponding to an initial orientation setpoint, piloting the orientation of each secondary reference module according to a secondary reference orientation setpoint corresponding to the initial orientation setpoint shifted by a predefined offset angle; receiving an energy production value from each reference module; piloting the orientation of the modules, except for the reference modules, by applying the reference orientation setpoint associated to the reference module having the highest production value.

Panel rail saddle for solar module

METHOD FOR PREDICTIVE CONTROL OF THE ORIENTATION OF A SOLAR TRACKER

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including observing the evolution over time of the cloud coverage above the solar tracker; determining the evolution over time of an optimum inclination angle of the solar tracker substantially corresponding to a maximum of solar radiation on the solar tracker, depending on the observed cloud coverage; predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; servo-controlling the orientation of the solar tracker according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle.

Battery management architectures for flow batteries

Systems and methods for managing flow batteries utilize a battery management controller (BMC) coupled between a flow battery and a DC/DC converter, which is coupled to an electrical grid or a photovoltaic device via an inverter. The inverter converts an AC voltage to a first DC voltage and the DC/DC converter steps down the first DC voltage to a second DC voltage. The BMC includes a first power route, a second power route, and a current source converter coupled to the second power route. The BMC initializes the flow battery with a third DC voltage using the current source converter until a sensing circuit senses that the voltage of the flow battery has reached a predetermined voltage. The sensing circuit may include a capacitor, which has a small capacitance and is coupled across each cell of the flow battery, coupled in series between two resistors having very large resistances.

Solar tracker drive apparatus

METHOD FOR PREDICTIVE CONTROL OF THE ORIENTATION OF A SOLAR TRACKER

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including 113-. (canceled)14. A method for controlling a solar tracker comprising:observing cloud coverage above a solar tracker via satellite images of the sky over the solar tracker;comparing the observed cloud coverage with cloud coverage models stored in a database, each cloud coverage model being associated with an orientation setpoint for the solar tracker;matching the observed cloud coverage with a cloud coverage model; andcontrolling the orientation of the solar tracker to the orientation setpoint of the matched cloud coverage model,wherein the cloud coverage models include:a zero-cloud coverage model is associated with a direct inclination angle orientation set point; anda widespread cloud coverage model associated with a zero-inclination angle orientation set point.15. The method according to claim 14 , wherein each cloud coverage model is associated with an orientation setpoint value which depends on a composition of a cloud layer of the cloud coverage model claim 14 , the composition depending on at least one of a number of clouds claim 14 , coverage surface of the clouds claim 14 , thickness of the clouds claim 14 , location of the clouds claim 14 , type of cloud(s).16. The method according to claim 14 , wherein claim 14 , for each cloud coverage model claim 14 , the corresponding orientation setpoint value is predefined according to at least one of the following parameters: an energy consumption necessary to modify the orientation of the solar tracker claim 14 , and a displacement speed of the solar tracker during an orientation change.17. The method according to claim 14 , wherein the cloud coverage models comprise at least one fine cloud coverage model to which an orientation setpoint value is associated on a predefined intermediate angle between the direct inclination angle orientation set point and a zero inclination angle orientation set ...

Off-set drive assembly for solar tracker

In an example, the present invention provides a solar tracker apparatus configured with an off-set drive assembly. In an example, the apparatus has an inner race structure, which has a cylindrical region coupled to a main body region, the main body comprising an off-set open region. The cylindrical region is an annular sleeve structure coupled to the main body region, which occupies the spatial region within the cylindrical region. In an example, the apparatus has an outer race structure coupled to enclose the inner race structure, configured to couple the inner race structure to allow the inner race structure to move in a rotational manner about a spatial arc region; and configured to allow the inner race structure to pivot about a region normal to a direction of the spatial arc region. In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube.

Radial cam helix with 0 degree stow for solar tracker

A solar tracking system including a plurality of bases, a torque tube supported by the plurality of bases and configured to support a plurality of solar modules, and a drive device operably connected to the torque tube and arranged to translate the torque tube in a direction parallel to its longitudinal axis. The solar tracking system also includes a plurality of helical guides operably connected to the torque tube, and a plurality of cam assemblies, wherein upon linear movement of the torque tube, interaction between the helical guides and cam assemblies causes the torque tube to rotate about its linear axis.

Method for controlling the orientation of a solar tracker based on cartographic models

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, the method repetitively completing successive control phases, where each control phase implements the following successive steps: observing the cloud coverage above the solar tracker; comparing the observed cloud coverage with cloud coverage models stored in a database, each cloud coverage model being associated to an orientation setpoint value of the solar tracker; matching the observed cloud coverage with a cloud coverage model; servo-controlling the orientation of the solar tracker by applying the orientation setpoint value associated to said cloud coverage model retained during step c).

Solar tracker drive apparatus

Method for predictive control of the orientation of a solar tracker

A method for controlling the orientation of a single-axis solar tracker (1) orientable about an axis of rotation (A), said method implementing the following steps: a) observing the evolution over time of the cloud coverage above the solar tracker (1); b) determining the evolution over time of an optimum inclination angle of the solar tracker (1) substantially corresponding to a maximum of solar radiation on the solar tracker (1), depending on the observed cloud coverage; (c) predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; d) calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; e) servo-controlling the orientation of the solar tracker (1) according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle. The present invention finds application in the field of solar ...

Power converters and methods of controlling same

A power converter converts a medium-voltage output from a solar module to an appropriate voltage to power a solar tracker system. The power converter includes a voltage divider having at least two legs, a first semiconductor switch subassembly coupled in parallel with a first leg of the voltage divider, and a second semiconductor switch subassembly coupled in parallel with a second leg of the voltage divider. The power converter may be a unidirectional or a bidirectional power converter. In implementations, the signals for driving the semiconductor switches of the first and second semiconductor switch subassemblies may be shifted out of phase from each other. In implementations, if the bus voltages to the semiconductor switches are not balanced, the pulse width of the driving signal of the semiconductor switch supplied with the higher bus voltage is decreased for at least one cycle.

Horizontal balanced solar tracker

In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.

Solar wind fence for an array of trackers

A solar tracker array has solar modules that may be configured to operate as a wind fence according to a wind characteristic.

Panel rail saddle device for solar module

Expandable splice for a solar power system

The present disclosure describes an expandable splice configured for reinforcing a tube of a solar owner system, the splice including a top panel, a bottom panel, a first side panel, a second side panel, and at least one beveled corner panel, wherein the first and second side panels are connected to the top and bottom panels either directly or by the at least one beveled corner panel to form a channel therebetween.

Systems and methods of DC power conversion and transmission for solar fields

Systems and methods integrate advanced solar tracker, battery, inverter, and software technologies to improve performance, plant output, and costs. The systems may incorporate an advanced vanadium flow battery (VFB) that is DC-voltage (DV)-coupled to photovoltaic (PV) arrays for high, round-trip efficiency. The systems incorporate a DC architecture that optimizes performance for commercial, industrial, agricultural, and utility applications. A distributed direct current (DC) power system includes a centralized, single-stage inverter; PV arrays; maximum power point tracking (MPPT) converters coupled between the PV arrays and the centralized, single-stage inverter; batteries; and DC-DC battery converters (DCBCs) coupled to the batteries. The MPPT converters maximize solar power production by the PV arrays and minimize mismatch between the PV arrays. The DCBCs manage charge and discharge of the batteries, enable the interconnection of the PV arrays and the batteries, and supply a constant ...

Solar tracker drive apparatus

MULTIPLE ACTUATOR SYSTEM FOR SOLAR TRACKER

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction. 1. A solar tracking system , comprising:a solar array;a support structure configured to support the solar array;a base configured to rotatably support the support structure; and a gearbox coupled to the support structure; and', 'an actuator having a first end portion and an second, opposite end portion,, 'an articulation system configured to articulate the support structure relative to the base, the articulation system comprisingwherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox, the actuator configured to extend and retract,wherein extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the base in a second, opposite direction.2. The solar tracking system according to claim 1 , wherein the articulation system includes a motor that is mechanically coupled to the gearbox claim 1 , wherein actuation of the motor causes the actuator to extend or retract.3. The solar tracking system according to claim 1 , further including a plurality of bases claim 1 , each base ...

Horizontal balanced solar tracker

In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.

Self-powered solar tracker apparatus

A solar tracker apparatus includes an adjustable hanger assembly that has a clam shell hanger assembly. The clam shell hanger assembly may hold a torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end. A center of mass of the solar tracker apparatus may be aligned with a center of rotation of the torque tubes, in order to reduce a load of a drive device operably coupled to the torque tube. Solar modules may be coupled to the torque tubes. The solar tracker includes an energy system that includes solar panel, a DC to DC converter, a battery, and a micro-controller. The energy system may facilitate full operation movement of the tracker apparatus without any external power lines.

Clamp assembly for solar tracker

In an example, the solar tracker has a clamp assembly configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first and second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure, a torque tube suspending on the pivot device and aligned within an opening of the support, and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.

Solar module mounting bracket assemblies

A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member.

Solar array with reference solar power plant for improved management

Solar array including solar modules distributed in rows (10), each solar module having a solar collector carried by a single-axis solar tracker (4), a reference solar power plant including a central reference solar module and at least one secondary reference solar module, and a piloting unit adapted for: piloting the angular orientation of the central reference module according to a central reference orientation setpoint corresponding to an initial orientation setpoint, piloting the orientation of each secondary reference module according to a secondary reference orientation setpoint corresponding to the initial orientation setpoint shifted by a predefined offset angle; receiving an energy production value from each reference module; piloting the orientation of the modules, except for the reference modules, by applying the reference orientation setpoint associated to the reference module having the highest production value.

Solar array with reference solar power plant for improved management

Solar array (1) comprising solar modules (3) distributed in rows (10), each solar module comprising solar collector (5) carried by a single-axis solar tracker (4), a reference solar power plant (2) comprising a central reference solar module and at least one secondary reference solar module, and a piloting unit (7) adapted for: piloting the angular orientation of the central reference module according to a central reference orientation setpoint corresponding to an initial orientation setpoint, piloting the orientation of each secondary reference module according to a secondary reference orientation setpoint corresponding to the initial orientation setpoint shifted by a predefined offset angle; receiving an energy production value from each reference module; piloting the orientation of the modules, except for the reference modules, by applying the reference orientation setpoint associated to the reference module having the highest production value.

Method for predictive control of the orientation of a solar tracker

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including observing the evolution over time of the cloud coverage above the solar tracker; determining the evolution over time of an optimum inclination angle of the solar tracker substantially corresponding to a maximum of solar radiation on the solar tracker, depending on the observed cloud coverage; predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; servo-controlling the orientation of the solar tracker according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle.

Method for predictive control of the orientation of a solar tracker

A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, includingobserving the evolution over time of the cloud coverage above the solar tracker;determining the evolution over time of an optimum inclination angle of the solar tracker substantially corresponding to a maximum of solar radiation on the solar tracker, depending on the observed cloud coverage;predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage;calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage;servo-controlling the orientation of the solar tracker according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle.

DC/DC converter for distributed storage and solar systems

A multi-power distributed storage system including a first power source; a second power source electrically connected to a common bus with the first power source; a single input port inverter electrically connected to the common bus. The system including a controller configured to communicate with at least the second power source, and the single input port inverter. The second power source including a plurality of battery banks and a plurality of bi-directional DC/DC converters configured to charge and discharge the plurality of battery banks and provide DC to the single input port inverter.

Frameless solar module mounting

In an example, a clamp assembly for a glass on glass solar module for a tracker is included. The assembly has a lower clamp structure characterized by a top-hat shaped rail structure having a length extending from a first end to a second end. In an example, the assembly has an upper clamp structure configured to sandwich a pair of edges of a pair of solar modules with a portion of the lower clamp structure. In an example, the assembly has a locking spacer configured to the pair of edges of the pair of solar modules. In an example, the pair of edges comprises substantially glass material. In an example, the assembly has a pair of key structures configured with the locking spacer. Each of the key structures is affixed to each of the solar modules to physically lock each of the solar modules to the upper clamp structure.

Adjustable clip assembly for solar modules

The present disclosure describes a solar power system including rails, solar modules, and a plurality of adjustable clips to secure the solar modules to the rails. The clips include at least a base member, an elastomeric support member, a bracket member, and an alignment member configured to secure the various members of the clip together. The adjustable clips are configured to slide within a slot defined through a portion of a surface of a rail and including a recessed edge thereby allowing the rail system to accommodate solar modules of varying dimensions.

Washing system for solar panels

A method and system for cleaning an array of solar panels. The system can include an applicator apparatus configured with a plurality of cleaning devices, and an automatic position system (APS) configured with the applicator apparatus. The APS can include a first and second sensor coupled to the applicator apparatus. A controller coupled to the first and second sensor devices can be configured to adjust a position of the applicator apparatus to maintain the plurality of cleaning devices in a direction facing a solar panel to facilitate a removal of an undesired material from the solar panel, while the applicator apparatus is moved from a first position to a second position. A mobile vehicle can be configured with the applicator apparatus to move along a row of the array of solar panels to perform the method for cleaning.

Clamp assembly for solar tracker

In an example, the solar tracker has a clamp assembly configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first and second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure, a torque tube suspending on the pivot device and aligned within an opening of the support, and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.

Method for controlling the orientation of a solar module with two photoactive faces

A method for controlling the orientation of a solar module including a single-axis solar tracker orientable about an axis of rotation, and a photovoltaic device supported by said tracker and having upper and lower photoactive faces, including: measurement of a distribution of the solar luminance called incident luminance originating from the incident solar radiation coming from the sky to reach the upper face, said distribution being established according to several elevation angles; measurement of a distribution of the solar luminance called reflected luminance originating from the albedo solar radiation corresponding to the reflection of the solar radiation on the ground to reach the lower face, said distribution being established according to several elevation angles; determination of an optimum orientation considering the measurements of said distributions of the incident and reflected solar luminance; servo-control of the orientation of the module on said optimum orientation.

Actuator systems for solar trackers

A solar tracking system includes a solar array, support beams that support the solar array, a torque tube coupled to the support beams, a base that rotatably supports the torque tube, and an articulation system that rotates the torque tube relative to the base. The articulation system includes an outer tube, a screw rod, and a nut and/or inner tube that rotates and translates along a length of the screw rod as the screw rod rotates. The interior portion of the outer tube includes helical grooves and the exterior portion of the nut or inner tube includes ridges or rollers that mate with the helical grooves, which cause the nut and/or inner tube to rotate as the nut and/or inner tube is translated along a length of the screw rod when the screw rod is rotated by the motor.

Off-set swivel drive assembly for solar tracker

In an example, the present invention provides a solar tracker apparatus configured with an off-set drive assembly. In an example, the apparatus has an inner race structure, which has a cylindrical region coupled to a main body region, the main body comprising an off-set open region. The cylindrical region is an annular sleeve structure coupled to the main body region, which occupies the spatial region within the cylindrical region. In an example, the apparatus has an outer race structure coupled to enclose the inner race structure, configured to couple the inner race structure to allow the inner race structure to move in a rotational manner about a spatial arc region; and configured to allow the inner race structure to pivot about a region normal to a direction of the spatial arc region. In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube.

Clamp assembly for solar tracker

In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first anchoring region and a second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure and a torque tube suspending on the pivot device and aligned within an opening of the support and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.

SOLAR ARRAY WITH REFERENCE SOLAR POWER PLANT FOR IMPROVED MANAGEMENT

Solar array () comprising solar modules () distributed in rows (), each solar module comprising solar collector () carried by a single-axis solar tracker (), a reference solar power plant () comprising a central reference solar module and at least one secondary reference solar module, and a piloting unit () adapted for: 111-. (canceled)12. A method for managing a solar array comprising solar modules supported by single-axis solar trackers and arranged in parallel rows , the method comprising:calculating an initial orientation setpoint;controlling an angular orientation of a first reference solar module according to a first reference orientation setpoint corresponding to the initial orientation setpoint;controlling an angular orientation of a second reference solar module according to a second reference orientation setpoint corresponding to the initial orientation setpoint shifted by a non-zero offset angle associated with the second reference solar module;receiving a solar energy production value from each of the first and second reference solar modules; andcontrolling angular orientations of the solar modules other than the first and second reference solar modules according to a reference orientation setpoint associated with a reference solar module of the first and second reference solar modules having the highest solar energy production value.1319. The method according to claim , wherein , if the second reference solar module has the highest solar energy production value for a predefined waiting time , angular orientations of the solar modules other than the first and second reference solar modules are controlled according to the second reference orientation setpoint.1420. The method according to claim , wherein the predefined waiting time is based on an energy consumption needed to modify the angular orientations of the solar modules other than the first and second reference solar modules.1520. The method according to claim , wherein the predefined waiting time ...

Mass damper for solar tracker

In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.

Multiple actuator system for solar tracker

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.

Solar module mounting bracket assemblies

A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member.

Off-set drive assembly for solar tracker

A slew gear drive including a housing having a tubular portion having a longitudinal axis, a shaft formed with a worm gear configured for rotational movement about the longitudinal axis within the tubular portion of the housing, and a torque tube having an outer surface, the torque tube carried by the housing for rotational movement about a rotational axis perpendicular to the worm gear, wherein an inner race coupled to the torque tube including a gear having teeth configured to engage the worm gear, the teeth extending less than a 360 degrees around the inner race. Rotation of the worm gear about the longitudinal axis engaging the teeth of the inner race, thereby rotating the inner race the torque tube about the rotational axis relative to the housing.

Clamp assembly for solar tracker

In an example, the solar tracker has a clamp assembly configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first and second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure, a torque tube suspending on the pivot device and aligned within an opening of the support, and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.

Adjustable clip assembly for solar modules

The present disclosure describes a solar power system including rails, solar modules, and a plurality of adjustable clips to secure the solar modules to the rails. The clips include at least a base member, an elastomeric support member, a bracket member, and an alignment member configured to secure the various members of the clip together. The adjustable clips are configured to slide within a slot defined through a portion of a surface of a rail and including a recessed edge thereby allowing the rail system to accommodate solar modules of varying dimensions.

ADJUSTABLE CLIP ASSEMBLY FOR SOLAR MODULES

The present disclosure describes a solar power system including rails, solar modules, and a plurality of adjustable clips to secure the solar modules to the rails. The clips include at least a base member, an elastomeric support member, a bracket member, and an alignment member configured to secure the various members of the clip together. The adjustable clips are configured to slide within a slot defined through a portion of a surface of a rail and including a recessed edge thereby allowing the rail system to accommodate solar modules of varying dimensions. 119-. (canceled)20. A method of securing a solar module to a solar power rail system comprising:positioning a first and second clip assembly within at least one rail slot defined through a first rail, wherein the first clip assembly includes a base member configured to slide along a surface of first rail, the base member including a base aperture, an elastomeric support member configured to be positioned on a top surface of the base member opposite the rail, the elastomeric support member including a support aperture, a bracket member configured to be positioned on a top surface of the elastomeric support member opposite the base member, the bracket member including a bracket aperture, and an alignment member having an elongate body defined between a first end portion and a second end portion, the first end portion including a head and the elongate body including a channel extending therethrough, the alignment member including a resilient locking member fixed on an outer perimeter of the elongate body between the first and second end portions, the elongate body positioned through the base aperture, the support aperture and the bracket aperture securing the base member, the elastomeric support member and the bracket member between the head and the resilient locking member of the alignment member;inserting a first end of a solar module into the elastomeric support member of the first clip assembly;positioning the ...

Method for controlling the orientation of a solar tracker based on cartographic models

A method for controlling the orientation of a single-axis solar tracker (1) orientable about an axis of rotation (A), said method repetitively completing successive control phases, where each control phase implements the following successive steps: a) observing the cloud coverage above the solar tracker (1); b) comparing the observed cloud coverage with cloud coverage models stored in a database, each cloud coverage model being associated to an orientation setpoint value of the solar tracker; c) matching the observed cloud coverage with a cloud coverage model; d) servo-controlling the orientation of the solar tracker by applying the orientation setpoint value associated to said cloud coverage model retained during step c). The present invention finds application in the field of solar trackers.

Self-powered solar tracker apparatus

A solar tracker apparatus includes an adjustable hanger assembly that has a clam shell hanger assembly. The clam shell hanger assembly may hold a torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end. A center of mass of the solar tracker apparatus may be aligned with a center of rotation of the torque tubes, in order to reduce a load of a drive device operably coupled to the torque tube. Solar modules may be coupled to the torque tubes. The solar tracker includes an energy system that includes solar panel, a DC to DC converter, a battery, and a micro-controller. The energy system may facilitate full operation movement of the tracker apparatus without any external power lines.

Articulation joints for terrain following solar tracker

A coupling system for use with a solar tracker includes a support flange, a swivel flange rotatably supported on the support flange, an articulation joint interposed between each of the support flange and the swivel flange and rotatably supported by each of the support flange and the swivel flange, wherein opposed first and second end portions of the articulation joint are configured to be operably coupled to a respective first and second torque tube, and at least one locking fastener selectively coupled to a portion of the support flange and a portion of the swivel flange, the at least one locking fastener configured to selectively inhibit rotation of the swivel flange relative to the support flange.

METHOD FOR CONTROLLING THE ORIENTATION OF A SOLAR MODULE WITH TWO PHOTOACTIVE FACES

A method for controlling the orientation of a solar module including a single-axis solar tracker orientable about an axis of rotation, and a photovoltaic device supported by said tracker and having upper and lower photoactive faces, including: measurement of a distribution of the solar luminance called incident luminance originating from the incident solar radiation coming from the sky to reach the upper face, said distribution being established according to several elevation angles; measurement of a distribution of the solar luminance called reflected luminance originating from the albedo solar radiation corresponding to the reflection of the solar radiation on the ground to reach the lower face, said distribution being established according to several elevation angles; determination of an optimum orientation considering the measurements of said distributions of the incident and reflected solar luminance; servo-control of the orientation of the module on said optimum orientation. 1. A controlling method for controlling the orientation of a solar module comprising:a single-axis solar tracker orientable about an axis of rotation for an orientation of the solar module allowing following the Sun (SO) during its rise and its descent from east to west; anda photovoltaic device supported by said solar tracker and having a photoactive upper face facing the sky and provided with photovoltaic cells and a photoactive lower face facing the ground and provided with photovoltaic cells;said controlling method comprising the following successive steps:measurement of a distribution of the solar luminance called incident luminance originating from the solar radiation called incident radiation which comes from the sky and which is capable of reaching the upper face of the photovoltaic device, said distribution of the incident solar luminance being established according to several elevation angles corresponding to several orientations of the solar module about the axis of rotation; ...

SOLAR MODULE TRACKER SYSTEM OPTIMIZED FOR BIFACIAL SOLAR PANELS

A solar tracker including solar modules which include, a frame and a plurality of bifacial solar cells supported by the frame. The solar modules also including a gap formed between two or more of the solar cells, the gap being formed proximate a centerline of the solar modules and configured to a allow passage of light from a first side of the solar modules to a second side of a solar modules, where the light passing through the gap is reflected back onto the plurality of bifacial solar cells and converted to electrical energy.

Systems and methods for photovoltaic direct current (dc) bus control

Solar power systems and methods utilize DC power transmission and centralized power inversion. The solar power systems include a photovoltaic (PV) bus system and a fixed bus system. The PV system utilizes a control mode handoff control method, which includes determining that a local maximum power point tracking (MPPT) control is enabled; in response to determining that the local MPPT control is enabled, starting an MPPT mode timer; performing local MPPT; determining that the MPPT mode timer is greater than a predetermined period; and, in response to determining that the MPPT mode timer is greater than a predetermined period, handing off MPPT control to the next MPPT controller. The distributed MPPT control method may include sequential MPPT control, adaptive ΔV MPPT control, and/or power limiting control. The fixed bus system includes PV string-level MPPT controllers and a fixed DC input central inverter or multiple fixed DC modular inverters.

Common dc bus and common ac bus power electronics systems and methods

An electrical system includes inverters coupled together in parallel and coupled to a common DC bus. The electrical system also includes a common AC bus coupled between outputs of the inverters and an electrical power grid. The electrical system also includes local controllers coupled to the inverters and decentralized controllers coupled to the local controllers. The decentralized controllers measure voltages and currents of the electrical power grid and the inverters and generate decentralized control signals for the local control controllers based on the measured voltages and currents. The electrical system also includes a centralized controller in communication with the local controllers. The centralized controller predicts a DC load and generates centralized control signals for the local controllers to maintain a constant voltage on the common DC bus based on the predicted DC load.

Multiple wall connection over piers

A solar tracker including at least one pair of piers configured to be secured in the ground and defining a span between the pair, a bearing supported on the pier, and a torque tube supported in the bearing such that the bearing enables rotation of the torque tube, the torque tube including a double wall thickness area, wherein the double wall thickness area limits deflection of the torque tube along the span.

Clip for mounting a solar module to a rail system

The present disclosure describes a solar power system including at least one mounting assembly including a rail, at least one framed solar module, and at least one clip to secure the solar module to the rail. The clip includes at least a pair of sidewalls extending from a top plate or rear wall, each sidewall including a slot, a recess, and a locking member, at least one of the slot, recess, or both include a serrated edge. The clips may secure a solar module to the rail by coupling to the frame of the solar module to a rail of the mounting assembly within the slots of the sidewalls. The clips may be secured to the mounting assembly by locking members positioned on a distal end thereof. The clips may establish an electrical grounding connection between the frame of the solar module and the rail.

Solar module mounting bracket assemblies

A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member.

Fixed dc bus and hydrogen generation system

A distributed direct current power system including an inverter to invert DC to alternating current (AC), a plurality of photovoltaic (PV) strings, and a plurality of maximum power point tracking (MPPT) converters coupled between the plurality of photovoltaic (PV) strings, respectively, and the central inverter, the plurality of MPPT converters configured to maximize solar power production by the plurality of PV strings and minimize mismatch between the plurality of PV strings. The system also including a plurality of batteries, a plurality of DC-DC battery converters (DCBC) coupled to the plurality of batteries and configured to manage charge and discharge of the plurality of batteries, enable interconnection of the plurality of PV strings and the plurality of batteries, and supply a constant medium DC voltage to the central inverter, and a hydrogen generation system in electrical communication with the inverter, the photovoltaic strings or the batteries.

SOLAR ARRANGEMENT AND METHOD TO MANAGE A SOLAR ARRANGEMENT

ARRANJO SOLAR E MÉTODO PARA GERENCIAR UM ARRANJO SOLAR. Trata-se de um arranjo solar (1) que compreende módulos solares (3) distribuídos em fileiras (10), em que cada módulo solar compreende um coletor solar (5) portado por um seguidor solar de eixo geométrico único (4), uma usina de energia solar de referência (2) que compreende um módulo solar de referência central e pelo menos um módulo solar de referência secundário e uma unidade de pilotagem (7) adaptada para: - pilotar a orientação angular do módulo de referência central em conformidade com um ponto de ajuste de orientação de referência central correspondente a um ponto de ajuste de orientação inicial, - pilotar a orientação de cada módulo de referência secundário em conformidade com um ponto de ajuste de orientação de referência secundário correspondente ao ponto de ajuste de orientação inicial deslocado em um ângulo de deslocamento predefinido; - receber um valor de produção de energia de cada módulo de referência; - pilotar a orientação dos módulos, exceto pelos módulos de referência, aplicando-se o ponto de ajuste de orientação de referência associado ao módulo de referência que tem o valor de produção mais alto.

Adjustable clip assembly for solar modules

The present disclosure describes a solar power system including rails, solar modules, and a plurality of adjustable clips to secure the solar modules to the rails. The clips include at least a base member, an elastomeric support member, a bracket member, and an alignment member configured to secure the various members of the clip together. The adjustable clips are configured to slide within a slot defined through a portion of a surface of a rail and including a recessed edge thereby allowing the rail system to accommodate solar modules of varying dimensions.

Staged stowage of solar trackers and methods thereof

Methods and systems of managing dynamic response to wind in a solar tracker system are provided. The method includes determining a wind speed, comparing the wind speed to a predetermined threshold value to determine if the wind speed equals or exceeds the predetermined threshold, positioning a windward most solar tracker to a predetermined angle based on the comparing, and positioning a leeward most solar tracker to the predetermined angle based on the comparing. The solar trackers are positioned at the predetermined angle at a predetermined interval starting at the windward most solar tracker and the remaining solar trackers remain in a normal operating condition.

Helical actuator system for solar tracker

A solar tracking system is provided and includes a solar array, a plurality of support beams configured to support the solar array, a torque tube coupled to the plurality of support beams, a base configured to rotatably support the torque tube, and an articulation system configured to rotate the torque tube relative to the base. The articulation system includes a first helical tube coupled to the torque tube, a first helical tube support disposed on the base and configured to slidably support the first helical tube, and a gearbox in mechanical communication with the first helical tube. Actuation of the gearbox causes the first helical tube to translate within the first helical tube support and the first helical tube support is configured to rotate the first helical tube as the first helical tube is translated therein to cause a corresponding rotation of the solar array.

Método de controle para controlar uma orientação de um rastreador solar, e, rastreador solar

MÉTODO PARA CONTROLE PREDITIVO DA ORIENTAÇÃO DE UM RASTREADOR SOLAR E RASTREADOR SOLAR. Trata-se de um método para controlar a orientação de um rastreador solar de eixo geométrico único (1) que pode ser orientado em torno de um eixo geométrico de rotação (A), sendo que o dito método implanta as etapas a seguir: a) observar a mudança ao longo do tempo na cobertura de nuvem acima do rastreador solar (1); b) determinar a mudança ao longo do tempo de um ângulo otimizado de inclinação do rastreador solar (1) substancialmente correspondente a uma radiação solar máxima no rastreador solar (1), com base na cobertura de nuvem observada; (c) prever a mudança futura da cobertura de nuvem com base na mudança observada anteriormente na cobertura de nuvem; d) calcular a mudança futura no ângulo otimizado de inclinação de acordo com base na previsão da mudança futura na cobertura de nuvem; e) controlar a orientação do rastreador solar (1) com base na mudança anterior do ângulo otimizado de inclinação e com base na mudança futura no ângulo otimizado de inclinação. A presente invenção tem aplicação no campo de rastreadores solares.

Methods and systems for detecting shading for solar trackers

A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.

Multi-power source systems for photovoltaic battery control

A multi-power source system including a first power source, a second power source in a parallel with the first power source, and a diode preventing power from the second power source to drive the first power source but permitting the first power source to charge the second power source. The system also includes a controller operably coupled to both the first and second power sources, and a plurality of field effect transistor (FETs) arranged in series with one or more of the first power source, the second power source, and the load, wherein controller can switch the plurality of FETs to enable the first power source to drive the load or the second power source to drive the load.

Structural beam for solar tracker

A solar system is provided and includes a solar array and a support structure configured to support the solar array. The support structure includes structural beam which includes an upper plate, a lower plate that is disposed opposite to the upper plate, a first side plate interposed between the upper and lower plates, and a second side plate interposed between the upper and lower plates and spaced apart from the first side plate. Each of the upper and lower plates is fixedly coupled to the first and second plates by a plurality of joints formed by clinching.