摘要:
A power transmitter that wirelessly transmits power to a power receiver includes a power converter that converts power fed from a power source into first direct current (DC) power, an inverter circuit that converts the first DC power into first alternating current (AC) power, a power transmission coil that generates a magnetic field based on the first AC power, and is magnetically coupled with a power reception coil included in the power receiver, a sensor that detects a current value and a voltage value of the first DC power, and a controller that controls the power converter, wherein the controller controls the power converter to raise a voltage of the first DC power up to a first voltage value lower than a predetermined power feeding time voltage value predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current value of the first DC power when the voltage of the first DC power is the first voltage value.
摘要:
A wireless power transfer system includes: a station that a vehicle is capable of entering and leaving; and a bottom part detection sensor having a detection unit capable of detecting an object that enters a detection range, provided at the station, and that outputs a bottom part detection signal corresponding to a portion, which enters the detection range, of a bottom part of the vehicle. The wireless power transfer system executes: a detection signal output step in which the bottom part detection sensor outputs a time-series bottom part detection signal when the vehicle moves in the station at a predetermined speed that is a prescribed speed; and a coil position information extraction step of extracting, from the time-series bottom part detection signal, coil position information that is information about a position of an electric power receiving coil in the vehicle.
摘要:
An electric power supply system program causes a control apparatus capable of controlling an electric power supply system to realize: a pairing information generating function to generate, when receiving an electric power supply request, specific pairing information that is pairing information; a pairing information transmitting function to transmit the specific pairing information to an object that has output the electric power supply request; a pairing information receiving function to receive the pairing information from the object by communication with the object located in the electric power supply space; and an electric power supply function to supply electric power to the object located in the electric power supply space when the received pairing information coincides with the specific pairing information.
摘要:
The power transmission system (A) includes a power transmitting device (10) that transmits AC power and a power receiving device (20) that receives the AC power. The power receiving device (20) includes a rectifier (22) that converts the received AC power into DC power, a DC converter (23a) that performs DC conversion on the DC power output from the rectifier (22), and a power-receiving side control device (23c) that calculates, based on an input voltage of the DC converter (23a), a current command value making input impedance of the DC converter (23a) equal to a preset value and that controls the DC converter (23a) so that an input current of the DC converter (23a) equals the current command value.
摘要:
The power transmission system (A) includes a power transmitting device (10) that transmits AC power and a power receiving device (20) that receives the AC power. The power receiving device (20) includes a rectifier (22) that converts the received AC power into DC power, a DC converter (23a) that performs DC conversion on the DC power output from the rectifier (22), and a power-receiving side control device (23c) that calculates, based on an input voltage of the DC converter (23a), a current command value making input impedance of the DC converter (23a) equal to a preset value and that controls the DC converter (23a) so that an input current of the DC converter (23a) equals the current command value.
摘要:
A wireless power transfer system includes: an electric power supply apparatus having an electric power supply primary coil capable of supplying electric power to an electric power supply secondary coil in a wireless manner, and a drive circuit that drives the electric power supply primary coil; and a posture/position adjustment mechanism capable of adjusting a relative posture or position between the electric power supply primary coil and the electric power supply secondary coil. The wireless power transfer system obtains, by means of data transfer, specific coil position information that is coil position information corresponding to information related to a position of the electric power supply secondary coil in a specific object that is an object that has made an electric power supply request, and electric power is supplied in a wireless manner from the electric power supply primary coil to the electric power supply secondary coil after the posture/position adjustment mechanism adjusts the relative posture or position between the electric power supply primary coil and the electric power supply secondary coil incorporated in the specific object based on the information related to the position of the electric power supply secondary coil in the specific object corresponding to the specific coil position information.