A device that is used for distribution network analysis and evaluation

The utility model discloses a device that is used for distribution network analysis and evaluation belongs to distribution network analysis and evaluation field, a plurality of acquisition terminals, high in the clouds server and analysis center PC end including the access network, high in the clouds server and acquisition terminal between be connected through the wireless network mode, acquisition terminal the power information collector, AD converter, DSP treater and the wireless communication module that connect including the order, its characterized in that: installation control by temperature change unit in the acquisition terminal casing, the control by temperature change unit include inside temperature digital sensor, control chip, ventilation unit and heating device, inside temperature digital sensor output port and control chip input ports are connected, control chip output port be connected with ventilation unit and heating device respectively. Compared with the prior art, the ...

Photovoltaic power generation system stability verification method and apparatus

The invention discloses a photovoltaic power generation system stability verification method and an apparatus. The method comprises the following steps: acquiring current operation data of a load in a photovoltaic power generation system; according to the current operation data, determining capacity configuration scopes of a plurality of units in the photovoltaic power generation system, wherein the plurality of units comprises a photovoltaic power generation unit, an energy storage unit and a controllable micro power supply unit; according to the capacity configuration scopes, determining verification sample data, wherein the verification sample data is used for carrying out stability verification on the photovoltaic power generation system; according to the verification sample data, carrying out the stability verification on the photovoltaic power generation system. In the photovoltaic power generation system stability verification method of the related technology, volatility of the load ...

Energy management method and system for power distribution park

The invention discloses an energy management method and an energy management system for a power distribution park. The method comprises the following steps: classifying according to the characteristic of each electrical load in a power distribution park; calculating and obtaining uncontrolled load morrow prediction curve and adjustable power cold and hot load morrow prediction curve; calculating and obtaining removable load morrow operation curve and storage type load morrow operation curve, calculating and obtaining starting work time period value of the removable load under the response of a demand side, the starting power output time period value of the storage type load under the response of the demand side, and the load reducing value of the interruptible load under the response of the demand side; performing comparative calculation to all curves and electricity consumption situation without optimization strategy; performing comparative calculation to the actual electricity consumption ...

Fast recovery diode chip of low-concentration doped emitter region and manufacturing method thereof

The invention relates to a power device and a manufacturing method of the power device, in particular to a fast recovery diode chip of a low-concentration doped emitter region and a manufacturing method of the fast recovery diode chip of the low-concentration doped emitter region. The fast recovery diode chip of the low-concentration doped emitter region comprises a metal cathode, a metal anode, a P-type doped layer, an N-type doped layer, an N-type substrate arranged between the P-type doped layer and the N-type doped layer, field oxide layers and passivation protective layer structures, wherein the metal anode is a low-concentration P-type doped region, the metal cathode is a low-concentration N-type buffer doped region and a low-concentration N-type reinforced doped region, the special manufacturing mode of injection doped of the reverse side is formed through an obverse side protection technology, and a device structure is formed through the special manufacturing mode of injection doped ...

Micro-grid energy real-time optimization control method

The invention relates to a micro-grid energy real-time optimization control method. When output power of a fan and output power of a photovoltaic power system are larger than the system power load, charging is carried out on an energy storage unit and an electric automobile, redundant electric energy is sold to a main grid, and the system benefit is increased; the output of storage batteries is continuously increased in the peak-load period to sell electricity to the main grid, the system benefit is increased, and the effect of peak clipping is achieved; in addition, when the generating cost of fuel cells is higher than the electricity purchasing cost, the electricity is purchased from the main grid, and the purpose of filling the peak valley and the purpose of improving operating economy of the system are achieved. The balance of system energy in the power grid is ensured, the economic benefit is increased, energy saving and emission reduction are achieved, and the problems that at present ...

Control circuit radiation resistant device in high-voltage high-power converter

The invention discloses a control circuit radiation resistant device in a high-voltage high-power converter. A shield device comprises a three-layer platy structure: one layer closest to the control circuit is a steel layer, the intermediate layer is a nickel or copper layer and the uppermost layer is a silver later, wherein the layer made of steel material is used as a material layer of a main structure of the device, the copper or nickel layer is used as an assisting silver-plating material layer and the silver layer is used as a main coating material layer. According to the device disclosed by the invention, the influence of high and low frequencies in an electric field and a magnetic field on the control circuit can be effectively shielded and the safe and reliable operation of an FPGA (Field Programmable Gate Array) control circuit under high-voltage heavy power can be sufficiently ensured.

Integrated control sub-module board for simulating multi-level modular converter (MMC) sub-module

The invention relates to a sub-module circuit board used for a dynamic simulation test for simulating a high-capacity multi-level modular converter (MMC). A digital controller on the circuit board is used for controlling a plurality of MMC sub-modules of which parameters are reduced according to an exponential method, the sub-modules are connected in series. Each MMC sub-module comprises a main circuit an insulated gate bipolar transistor (IGBT) and silicon controlled rectifier driving circuit, a capacitance and voltage sampling circuit, a circuit board isolation power supply, a control and coding-decoding chip shared by a plurality of sub-modules, and a fiber channel, wherein the main circuit a capacitor, two IGBTs which are connected vertically in series and connected with the capacitor in parallel, a bypass switch connected with the lower IGBT in parallel, and a silicon controlled rectifier which is used for protecting the IGBTs and the capacitor and connected with the lower IGBT.

Corrosion-resistant electric energy metering box

The invention relates to the technical field of electric energy metering boxes, and discloses a corrosion-resistant electric energy metering box which comprises a box body, a placement groove is formed in the box body, a plurality of heat dissipation holes are formed in the groove wall of the placement groove, a dust screen is arranged in each heat dissipation hole, a sliding groove is formed in the hole wall of each heat dissipation hole, a sliding plate is slidably connected in each sliding groove, and the sliding plate is arranged in the placement groove. A sliding plate is arranged in the box body, a sweeping assembly is arranged on the sliding plate and used for sweeping the dustproof net, a box door capable of shielding the containing groove is arranged on the box body, a limiting assembly and a moving assembly are arranged on the box door, the limiting assembly is used for limiting movement of the sliding plate, and the moving assembly is used for driving the sliding plate to move ...

Electric principle-based wind power plant cluster reactive power sharing method

The invention provides an electric principle-based wind power plant cluster reactive power sharing method. The method comprises the following steps: calculating real-time voltage of hubs; calculating voltage difference of the hubs; calculating the reactive power demand quantity of the hubs; calculating equivalent electric impedance of the wind powder plant from the wind plant to the hubs according to regional tidal stream information and wind power plant access circuit parameters; calculating the reactive sharing quantity of the wind power plant; and sending a reactive adjusting command to a wind power plant monitoring system to enter the next control. In the method, the hub voltage in the wind power plant access region is used as a regulating object, the actual condition of the wind power plant access region is concerned, and local region operation information is utilized so that equivalence is performed to the impedance of a wind power plant power passing circuit according to the basic ...

Auxiliary control system for economical operation of regional electric network transformer

The invention relates to an auxiliary control system for economical operation of a regional electric network transformer, which is applied to the technical field of electric power. The system comprises a database module, a communication module, an analysis and calculation module, a graphic display module, a report management module and a system management module, wherein the input end of the communication module is respectively connected with an automatic dispatch system and the analysis and calculation module to receive the measured data and form an economical operation control policy and an optimized operation curve to be output to the system management module, the graphic display module and the report management module; the database module is connected with the communication module to transmit the measured data; and the output end of the database module is connected with the analysis and calculation module to transmit the measured data, the economical operation control policy and the ...

Intelligent home system

The invention relates to an intelligent home system which comprises data collectors, a wireless network, intelligent interaction terminals, a switch and a master server. The data collectors are connected with intelligent electric meters and used for collecting real-time data information of the intelligent electric meters. The intelligent interaction terminals are in communication with the data collectors through the wireless communication network and are connected with a lighting control switch through the wireless communication network, and the intelligent interaction terminals are used for achieving data collection and information interaction of an intelligent switch and data collection and information interaction of an intelligent socket and is capable of achieving the function of controlling the intelligent switch and the intelligent socket. The intelligent interaction terminals are connected with the master server through the switch and used for transmitting collected home information ...

Electric principle-based wind power plant cluster reactive power sharing method

Two cutter head planer -type milling machines of double acting roof beam

The utility model discloses a two cutter head planer -type milling machines of two ridgepole and beam belong to planer -type milling machine technical field. The two cutter head planer -type milling machines of two ridgepole and beam include workstation, portal frame, control system, bed saddle, crossbeam, X spindle drive structure, Y spindle drive structure, Z spindle drive structure, stand and main shaft structure, the portal frame set up on the workstation, control system respectively with X spindle drive structure, Y spindle drive structure and Z spindle drive structural connection, Y spindle drive structure set up on the portal frame, crossbeam and Y spindle drive structural connection, control system, bed saddle, crossbeam, X spindle drive structure, Y spindle drive structure, Z spindle drive structure, stand and main shaft structure all have two, locate the both sides of portal frame respectively. The utility model discloses a two cutter head planer -type milling machines of double ...

Method for treating land by planting nitraria tangutorum in desert region

The invention provides a method for treating land by planting nitraria tangutorum in a desert region. The method comprises the following steps: S1, seedling field treatment: selecting a seedling field, preparing soil, formulating a fertilization plan, disinfecting soil and fertilizing; s2, seed treatment: seed disinfection, dormancy breaking, cleaning and impurity removal; s3, seedling raising: sowing, film covering and compacting, and fertilizing; s4, seedling lifting; s5, carrying out large-area planting in the desert region for land restoration: carrying out land preparation, nursery stock pretreatment, temporary planting, planting and management and protection for more than 3 years; the invention provides a whole set of technical process of nitraria tangutorum from seedling raising to land treatment in the desert region, including the soil and seed treatment process in the seedling raising process, the planting time, the transplanting time, the cup seedling size, the management and ...

Movable type static synchronous compensator (STATCOM) with modularization structure

The invention mainly provides a movable type static synchronous compensator (STATCOM) with a modularization structure. The (STATCOM) generally comprises a voltage source converter connected in parallel to a system, wherein the output capacitance or sensibility reactive current is continuously adjustable and is independent of the voltage of the connecting point of the system. Usually, the phase change of the voltage source converter is realized through a turnoff device, an energy storage component at a direct current side is the converter of a capacitor, and one basic current conversion and an operating unit formed by auxiliary equipment for converting current are combined to form a current conversion module. The chain in the invention is one current conversion module in the chain type voltage source converter, and a die set is a unitized chain in the chain type STATCOM.

Full-pressure-welding power device

The invention relates to a power semiconductor device, in particular to a full-pressure-welding power device. According to the full-pressure-welding power device, full-pressure-welding contact is achieved through cooperation of an upper electrode, a lower electrode, multiple layers of materials and silicon wafers, and then invalidation, caused by welding fatigue, of the device is eliminated. Compared with a traditional IGBT module which serves as a single device, the full-pressure-welding power device has the advantages that due to the fact that chip fastening force and device fastening force are provided by different devices respectively, fastening force when devices are connected in series for use is effectively improved, limitation of the pressure bearing limit of a power chip is eliminated, and multiple devices can be connected in series for use.

Demand response control system and method

The invention discloses a demand response control system and method in order to to enhance the effectiveness and the interactivity of demand response control. The system comprises a master control agent module, local control agent modules and a load agent module. The master control agent module is used for generating a load control scheme according to first load reduction information sent by a higher power grid and first controllable load source information submitted by the local control agent modules. The load control scheme comprises second load reduction information corresponding to the different local control agent modules, and the load control scheme is sent to the corresponding local control agent modules. The local control agent modules are used for sending first controllable load source information to the master control agent module, receiving the second load reduction information sent by the master control agent module, generating a first movement instruction used for the load ...

Communication method by using series connection valve triggering signal of high voltage electric and electronic device

The invention discloses a method for triggering signal communication between double-pole power tube IGBT gate pole driver units of the isolated gate of power electronic devices in the application of trigger pulse allocation units and high voltage in series. An optical fiber is used as communication media in the method, to ensure the reliability of the communication; one optical fiber is only needed to complete transmission of various trigger signals through a certain modulator approaches, therefore, the loss of communication line is reduced, the smallest quantity of track junction between equipments is ensured and wasting cost of optical fiber is reduced.

Multifunctional compound fertilizer capable of killing pests, preventing diseases and increasing yield

The invention relates to a multifunctional compound fertilizer capable of killing pests, preventing diseases and increasing yield. The preparation method of the multifunctional compound fertilizer comprises the following steps: firstly, respectively preparing a component A, a component B and a component C, wherein the component A is a vegetable insecticide, thecomponent B is a vegetable bactericide, and the component C is a vegetable growth promoting and yield increasing agent; after the three components are prepared, adding the finished product of the component C into a synthesis kettle for heating; then, sequentially adding the liquid medicine of the component A and the liquid medicine of the component B for continuously stirring, and keeping constant temperature; adding a penetrating agent JFC and polyethylene glycol into the synthesis kettle for stirring; and finally, adding a buffering agent for stirring and mixing uniformly, and homogenizing the mixture by a high-pressure homogenizer ...

Photovoltaic power generation control method and apparatus and photovoltaic power generation system

The invention provides a photovoltaic power generation control method and apparatus and a photovoltaic power generation system. The photovoltaic power generation control method comprises the steps of: obtaining current running data of loads in the photovoltaic power generation system; determining target power according to the current running data, wherein the target power is the sum of power of each of different types of loads; determining the minimum capacity of energy storage batteries in the photovoltaic power generation system according to the target power; configuring the energy storage batteries to be the energy storage batteries with the minimum capacity; and controlling the energy storage batteries to execute electric energy receiving or outputting. Through the photovoltaic power generation control method and apparatus and the photovoltaic power generation system, the problem of low load response speed of the photovoltaic power generation system caused by no consideration of actual ...

Negative-sequence-current-based control method of conversion chain average direct voltage

The invention particularly relates to a negative-sequence-current-based control method of conversion chain average direct voltage. The method comprises the following steps: comparing the average direct voltage of any two phases of three phases of conversion chain with the average value of direct current of all chain nodes to obtain average direct voltage deviation of the two phases of conversion chain, and processing by a PI (Proportional Integral) controller to obtain the active power deviation of the corresponding phase of conversion chain; combining the active power deviation and the effective value of alternating current side system voltage to obtain the negative-sequence current component instruction of the three phases of conversion chain through the negative-sequence current instruction calculation; transforming the of three-phase negative-sequence current component instruction into dq axis component of negative-sequence current instruction through Park Transform; obtaining the dq ...

Sowing technology of Chenopodium hupehensis seeds

The invention provides a sowing technology of camellia hupehensis seeds. The sowing technology comprises the following steps: selecting a land; degenerated and desertified grassland and abandoned cultivated land are prepared, and land is raked, leveled and leveled; the artificial grassland is deeply ploughed by 20-30 cm and prepared; seed treatment: removing impurities from the Chenopodium hupehensis seeds, dressing the seeds with fine sand in a ratio of 1: 1, and spraying the seeds with clear water two hours before sowing or soaking the seeds with clear water for 6-8 hours; fertilizing and irrigating: applying farmyard manure after sowing, and watering by adopting drip irrigation or spray irrigation; building an artificial grassland, to be more specific, sufficiently irrigating bottom water before sowing, sowing after 2-3 days or directly sowing and immediately irrigating, generally, emerging 3-5 days after sowing, and spraying urea when the seedlings grow to 15-20 cm; performing management ...

Energy management system of micro-grid

The invention relates to an energy management system of a micro-grid. The energy management system of the micro-grid comprises inverters, electric energy meters, an electric energy quality monitoring terminal, measurement and control protective devices, a micro-grid coordination controller, at least one energy management subsystem, an energy integrated management system and a communication network, wherein the inverters, the electric energy meters and the measurement and control protective devices are in communication connection with the micro-grid coordination controller through the communication network, the electric energy quality monitoring terminal is in communication connection with the energy management subsystem through the communication network, the micro-grid coordination controller is in communication connection with the energy management subsystem, and the energy management subsystem is in communication connection with the energy integrated management system. The energy management ...

A device for distribution network aassessment

The utility model discloses a device for distribution network aassessment belongs to and joins in marriage the power grid technology field, its characterized in that: including one or more acquisition terminal, third party wireless base station, high in the clouds server, PC customer end, the acquisition terminal include signal acquisition module, AD conversion module, singlechip, memory and wireless communication module, signal acquisition module output port and AD conversion module's input port be connected, AD conversion module output port connects the singlechip, the singlechip is connected with memory and wireless communication module respectively, wireless communication module pass through wireless connectivity third party wireless base station, the high in the clouds server inserts the communications network at third party wireless base station place, the PC customer end is connected to the high in the clouds server, wireless communication module pass through the wireless communication ...

Energy storage management system

The invention relates to an energy storage management system which comprises an energy storage converter, an energy storage management subsystem and a battery management system. The battery management system is connected with the energy storage management subsystem and the energy storage converter. The energy storage converter is integrated in the energy storage management subsystem. The energy storage management system further comprises a communication network, an energy storage system management module and an energy management system, wherein the energy storage management subsystem is in communication with the energy storage system management module through the communication network, and the energy storage system management module is in communication with the energy management system of an intelligent micro-grid. The energy storage management system is used for solving the problem that an existing energy storage management system is complex in structure and low in reliability.

Manufacturing method of field stop type IGBT device

The invention relates to a manufacturing method of the semiconductor device technology field and particularly relates to a manufacturing method of a field stop type IGBT device. The method comprises steps that an N type coped FZ monocrystalline wafer is selected, thickness is determined according to a voltage grade; ion implantation of phosphor impurity is carried out at a back face of the monocrystalline wafer, and high temperature annealing is carried out to form an N type doped buffer layer with thickness of 15-70um and doped concentration of 2*1013-2*1015/cm<3>; a protection layer at the back face is corroded, roughening at the back face is carried out by employing a corrosion or sandblast method to form a gettering source; a protection layer at a front face is removed, manufacturing of an IGBT cellular region is carried out at the front face of the monocrystalline wafer; the back face of the monocrystalline wafer is grinded to form a silicon substrate with thickness of 5-30um, the ...

Wind-power reactive power automatic control method for monitor system of wind power station

The invention relates to a wind-power reactive power automatic control method for a monitor system of a wind power station, which is characterized by comprising (1) a plan tracking mode control program and (2) a self-adaptive regulating mode control program. The method has the powerful functions of electric power real-time output and running control of an access power grid of the wind power station, can perform connection with a dispatching system of the power grid in China well, and is favorable for mutual coordination and running of the grid-connected wind power station and the power grid of an access area to improve the automation control and management running level of the wind power station.

Method for evaluating economic operation considering wind power integration uncertainty

A method for evaluating economic operation considering wind power integration uncertainty includes the steps of firstly, establishing a random economic dispatch model; secondly, calculating the optimal economic dispatch scheme; thirdly, evaluating the wind power absorption capacity. The method has the advantages that the limitation that only the power generation side is taken into consideration in a traditional method and serves as a dispatch resource is broken, interruptible loads can serve as the interaction resource of the user side to be included in the economic dispatch plan, the access of a large-scale wind power plant is taken into consideration, the random economic dispatch model with the interruptible loads and the wind power integration is established, the comprehensive optimization dispatch method that combines the Monte Carlo analog simulation with the improved primal-dual inner point method is put forward, the system running cost is effectively reduced, the negative effects ...

File merging method and device

The embodiment of the invention provides a file merging method and device. The file merging method comprises the steps of carrying out partitioning on sections in the charge of nodes in a cluster system according to key value information of user data, determining that each node meets a first triggering condition, reading at least two first files from disks of the nodes to caches corresponding to the nodes, respectively determining the target partition which each key value belongs to according to the key values of the data, corresponding to users, stored in the first files, merging the data with the same key value, and storing the merged data corresponding to the key values into the corresponding target partitions. Partitioning is carried out on the sections in the nodes, the data are merged once, and the data with the same key value are stored in the same partition. In the inquiry process, the partitions where the data are located are determined according to the key values, and then the ...

Load model parameter identification method based on clone selection algorithm

The invention relates to a load model parameter identification method based on a clone selection algorithm. According to the load model parameter identification method based on the clone selection algorithm, parameters to be identified serve as an antigen, an objective function of the parameters serves as an antibody, the maximum affinity between the antibody and the antigen serves as the objective, and a set of optimal load model parameters are obtained. Compared with the prior art, the load model parameter identification method based on the clone selection algorithm is good in optimal performance and robustness, and has good parallelism and operability; due to the fact that searching is carried out in a whole solution space to find more optimal individuals, the phenomenon that due to the fact that individuals with high fitness are in mass propagation in the later period of evolution, and fill the whole solution space, optimization stops on a local optimal solution is avoided.

Energy storage converter and battery energy storage system of energy storage converter

The invention relates to an energy storage converter and a battery energy storage system of the energy storage converter. The energy storage converter comprises an AC/DC module, an LCL filter, a main contactor, an alternating current EMI filter, an alternating current side pre-charging circuit, a main circuit breaker, a CL filter, a direct current EMI filter, a direct current side pre-charging circuit and a direct current side circuit breaker, wherein the alternating current side of the AC/DC module is sequentially connected with the LCL filter, the main contactor, the alternating current EMI filter and the main circuit breaker, the alternating current side pre-charging circuit is connected to the two ends of the main contactor in parallel, the direct current side of the AC/DC module is sequentially connected with the CL filter, the direct current EMI filter and the direct current side circuit breaker, and the direct current side pre-charging circuit is connected to the two ends of the ...

Dynamic equating method applicable to micro-grid

The invention provides a dynamic equating method applicable to a micro-grid. The method comprises the steps that voltage disturbance is set inside a studied system; a dynamic response of a tie line between the micro-grid and a superior power distribution network in the period of disturbance is recorded, and quadrature-axis and direct-axis currents flowing through the tie line are obtained in a conversion mode according to a power system analysis theory, wherein the dynamic response comprises a bus voltage and active and reactive data transmitted by the tie line; equating is carried out on a micro-grid system through an estimation equivalent method, and a non-mechanism transfer function model is selected to be a micro-grid equivalent model; the voltage data serve as system input, the quadrature-axis and direct-axis currents serve as system output, and parameter identification is carried out on the selected transfer function model through a niche immune algorithm; finally the mode is verified ...

A fast recovery diode and a manufacturing method thereof

The invention relates to a power semiconductor device and a manufacturing method thereof and specifically to a fast recovery diode and a manufacturing method thereof. A junction pushing is performed in an active region in order to form a P+ region and a P region. A junction forming process comprises: firstly performing boron injection in order to push a junction one to ten [mu]m; secondly performing phosphorus compensative injection, wherein a phosphorus injection condition requires that the amount of injected phosphorus only decreases the concentration of the P region close to the silicon surface but not reverses a junction; and performing active region compensative injection to form the P region with low surface concentration. Therefore, the amount of hole injection of the P region in forward conduction is decreased while the concentration on the two sides of a PN junction is guaranteed. When minority carrier lifetime control is used, excessive recombination centers are not required to ...

IGBT device capable of improving switch-on and switch-off speed and switch-on and switch-off uniformity and manufacturing method thereof

The invention relates to a power device and a manufacturing method of the power device, in particular to an IGBT device capable of improving the switch-on and switch-off speed and switch-on and switch-off uniformity and a manufacturing method of the IGBT device. The IGBT device comprises emitting electrode PAD regions, a grid PAD region, grid Finger regions, a grid Bus region and a terminal region. The grid PAD region is located at the center of the device, the emitting electrode PAD regions are distributed around the grid PAD region and separated by the grid Finger regions, the grid Bus region surrounds the emitting electrode PAD regions, and the terminal region is located on the periphery of the grid Bus region. By improving the traditional structural design of a polycrystalline silicon layer and a metal layer, the speed of charging and discharging cellular grids is improved when the IGBT device is switched on or switched off, and accordingly the overall switch-on and switch-off speed ...

Energy efficiency assessment method of electrical refrigeration water chilling unit central air-conditioning system

The invention discloses an energy efficiency assessment method of an electrical refrigeration water chilling unit central air-conditioning system. The energy efficiency assessment method of the electrical refrigeration water chilling unit central air-conditioning system comprises the steps that energy efficiency assessment indexes of a water chilling unit subsystem, a freezing circulating water subsystem, a cooling circulating water subsystem and an air-conditioning terminal subsystem are calculated through a monitoring host, an evaluation index limiting value ratio of each subsystem is calculated according to an energy efficiency national standard limiting value comprehensively corresponding to the energy efficiency assessment indexes, an energy efficiency assessment score of the central air-conditioning system is worked out according to the evaluation index limiting value ratios and by combining the weight coefficient of each subsystem in the air-conditioning overall energy efficiency ...

Two-stage energy management based intelligent community low-carbon energy management system

The invention provides a two-stage energy management based intelligent community low-carbon energy management system which comprises a terminal equipment layer, a monitoring layer, a building energy management layer and a community energy management layer. The terminal equipment layer is responsible for collecting field operation data of each profession subsystem and uploading the data to an upper monitoring system; the monitoring layer mainly completes gathering of the collected data, operating state monitoring and control, responds to control strategies of an upper energy management system and controls equipment; the building energy management layer completes analysis and application of energy consumption data of equipment in a building and community public utilities, and realizes a building energy optimization function from the prospective of the entire building; the community energy management layer completes advanced application functions such as energy consumption analysis and energy ...

Energy system of micro-grid

The invention relates to an energy system of a micro-grid. The energy system of the micro-grid comprises a first bus, a second bus and a third bus, wherein the first bus is connected with a first bus inlet end of a power grid through a first static switch, the second bus is connected with a second bus inlet end of the power grid through a second static switch, loads are connected to the first bus and the second bus respectively, a bus coupler switch is arranged between the first bus and the second bus in a connected mode, the two ends of the third bus are correspondingly connected with the first bus and the second bus of the micro-grid through a first grid-connecting switch and a second grid-connecting switch respectively, the third bus is connected with a micro-grid energy device, the micro-grid energy device comprises a photovoltaic power generation module, a wind power module, an energy storage module, a fuel cell module and a V2G module, a diverter switch is arranged between the photovoltaic ...

Intelligent socket provided with working state sensor and wireless identity marking mechanism

The invention relates to the technical field of electric power, in particular to an intelligent socket provided with a working state sensor and a wireless identity marking mechanism. The intelligent socket comprises a socket body. The socket body comprises an electric energy input end and an electric energy output end, and the electric energy output end is connected with electric equipment. The sensor used for sensing the working state of the socket body is arranged inside the socket body. The sensor comprises a current transformer used for detecting output current of the socket body. The sensor further comprises a voltage transformer used for detecting output voltage of the socket body. A signal input end of the sensor is located at the connecting position of the electric energy output end and the electric equipment. A wireless transmitting mechanism is further arranged inside the socket body, the sensor is connected with a micro-processor system, and the micro-processor system is connected ...

Ecological restoration system and method for mine landfill based on modified Yellow River sediment

The invention provides an ecological restoration system of a mine landfill based on modified Yellow River silt. The ecological restoration system comprises an anti-seepage cushion layer, a water storage layer, a drip irrigation layer and an anti-evaporation layer. The anti-seepage cushion layer is prepared from hydrophobic Yellow River silt, the anti-seepage cushion layer is laid on the surface of the mine filling body, the laying thickness is 2-3 cm, and the dry density is 1.6-1.7 g/cm < 3 >; the water storage layer is prepared from water-retaining Yellow River silt, the water storage layer is laid on the surface of the anti-seepage cushion layer, the laying thickness is 30-50 cm, and the dry density is 1.55-1.6 g/cm < 3 >; the drip irrigation layer is laid on the surface of the water storage layer; the anti-evaporation layer is prepared from hydrophobic Yellow River silt and is laid on the surface of the drip irrigation layer, and the laying thickness is 1-2 cm. Cooperative treatment ...

Electromagnetic isolation lamp switch applicable to inflammable and explosive places

An electromagnetic isolation lamp switch applicable to inflammable and explosive places comprises a lamp switch. The lamp switch comprises a thyristor lamp control mechanism which is connected in a control manner with a lamp. The thyristor lamp control mechanism comprises a thyristor. The lamp switch further comprises a thyristor on-off state trigger mechanism used for controlling the on-off state of the thyristor lamp control mechanism and connected with the thyristor. The thyristor on-off state trigger mechanism controls the on-off state of the thyristor lamp control mechanism so as to control the on-off state of the lamp.