Local demand side power management for electric utility networks

A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal.

METHODS AND APPARATUS UTILIZING MULTIPLE RADARS IN OBJECT DETECTION FOR WIRELESS POWER TRANSFER

Methods and apparatus utilizing time division access of multiple radar transceivers in living object detection for wireless power transfer applications are provided. In one aspect, an apparatus for detecting an object in a detection area of a wireless power transfer system is provided. The apparatus comprises a plurality of radar transceivers. The apparatus comprises a processor configured to group the plurality of radar transceivers into pairs of radar transceivers. The processor is configured to instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots. The processor is configured to instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots. The processor is configured to detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers. 1. An apparatus for detecting an object in a charging area of a wireless power transfer system having a base pad with first and second sides and configured to wirelessly charge a chargeable energy storage device , the apparatus comprising:a plurality of radar transceivers, each of the plurality of radar transceivers comprising a transmit antenna and a receive antenna; and instruct first and second radar transceivers of the plurality of radar transceivers to transmit first and second radar signals, respectively, during a first time slot of a plurality of time slots, wherein the first radar transceiver is integrated with the first side of the base pad and the second radar transceiver is integrated with the second side of the base pad, the first side being different from the second side,', 'instruct the first and second radar transceivers to receive first and second reflected radar signals, respectively, during the first time slot, and', 'detect a presence of the object in the charging area based on the ...

Methods and systems for compatible operation between a wireless power transfer system and wirelessly communicating vehicle systems

Methods and apparatuses for wireless communication with a system of a vehicle are provided. One implementation includes an apparatus for wireless communication with a system of a vehicle. The apparatus comprises a first antenna configured to receive a signal from the system of the vehicle. The apparatus comprises a processor configured to determine whether the first antenna is saturated by an external magnetic field. The processor is further configured to cause the at least one of the first antenna or a second antenna to transmit a frame indicating that the first antenna is saturated by the external magnetic field in response to determining that the first antenna is saturated. The frame is a periodic frame. The processor is further configured to transmit an identification frame identifying the apparatus in response to receiving a trigger signal. A wireless power transmitter is configured to reduce or discontinue wireless power transmission in response to receiving the frame.

LOCAL DEMAND SIDE POWER MANAGEMENT FOR ELECTRIC UTILITY NETWORKS

A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal. 1. An apparatus for production of a control signal for a demand side electric power supply management system , comprising:means to accept set point;measurement means to measure power flow into a supply network; andmeans to convert information from the measurement means into a control signal for transmission over the network wherein the frequency of the control signal is indicative of the power available to the network.2. The apparatus as claimed in wherein the network is supplied by a transformer and the measurement means measures the power supplied by or at the transformer.3. The apparatus as claimed in wherein the control signal comprises a low voltage signal relative to the voltage of the network.4. The apparatus as claimed in wherein the apparatus for producing the control signals is capable of sourcing a high current relative to the current required by individual loads supplied by the network.5. The apparatus as claimed in wherein the control signal comprises a signal in the range of substantially 1-3 volts at 50-500 A.6. The apparatus as claimed in wherein the control signal frequency is substantially ...

METHODS AND APPARATUS UTILIZING TIME DIVISION ACCESS OF MULTIPLE RADAR MODULES IN LIVING OBJECT DETECTION FOR WIRELESS POWER TRANSFER APPLICATIONS

Methods and apparatus utilizing time division access of multiple radar transceivers in living object detection for wireless power transfer applications are provided. In one aspect, an apparatus for detecting an object in a detection area of a wireless power transfer system is provided. The apparatus comprises a plurality of radar transceivers. The apparatus comprises a processor configured to group the plurality of radar transceivers into pairs of radar transceivers. The processor is configured to instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots. The processor is configured to instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots. The processor is configured to detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers. 1. An apparatus for detecting an object in a detection area of a wireless power transfer system , the apparatus comprising:a plurality of radar transceivers; and group the plurality of radar transceivers into pairs of radar transceivers,', 'instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots,', 'instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots, and', 'detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers., 'a processor configured to2. The apparatus of claim 1 , wherein each of the pairs of radar transceivers comprises a transmitter.3. The apparatus of claim 1 , wherein each of the pairs of radar transceivers comprises a receiver.4. The apparatus of claim 1 , wherein claim 1 , for each of the pairs of radar transceivers claim 1 , a first ...

Methods and apparatus utilizing time division access of multiple radar modules

Methods and apparatus utilizing time division access of multiple radar modules in living object detection for wireless power transfer applications

Methods and apparatus utilizing time division access of multiple radar transceivers in living object detection for wireless power transfer applications are provided. In one aspect, an apparatus for detecting an object in a detection area of a wireless power transfer system is provided. The apparatus comprises a plurality of radar transceivers. The apparatus comprises a processor configured to group the plurality of radar transceivers into pairs of radar transceivers. The processor is configured to instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots. The processor is configured to instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots. The processor is configured to detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers.

Methods and systems for compatible operation between a wireless power transfer system and wirelessly communicating vehicle systems

Methods and apparatuses for wireless communication with a system of a vehicle are provided. One implementation includes an apparatus for wireless communication with a system of a vehicle. The apparatus comprises a first antenna configured to receive a signal from the system of the vehicle. The apparatus comprises a processor configured to determine whether the first antenna is saturated by an external magnetic field. The processor is further configured to cause the at least one of the first antenna or a second antenna to transmit a frame indicating that the first antenna is saturated by the external magnetic field in response to determining that the first antenna is saturated. The frame is a periodic frame. The processor is further configured to transmit an identification frame identifying the apparatus in response to receiving a trigger signal. A wireless power transmitter is configured to reduce or discontinue wireless power transmission in response to receiving the frame.

Local demand side power management for electric utility networks

A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal.