POWER TRANSMISSION SYSTEM
First Claim
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1. A power transmission system comprising:
- a power transmitting device configured to convert supplied alternating current (AC) or direct current (DC) power into AC power and transmit the converted AC power via a transmission path; and
a power receiving device configured to receive the AC power via the transmission path,wherein the power receiving device comprises;
a rectifier configured to rectify the AC power received via the transmission path to DC power;
a DC converter configured to perform DC conversion on the DC power output from the rectifier; and
a power-receiving side controller configured to calculate, based on an input voltage of the DC converter, a current command value making input impedance of the DC converter equal to a preset value and to control the DC converter so that an input current of the DC converter equals the current command value.
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Abstract
The power transmission system includes a power transmitting device that transmits AC power and a power receiving device that receives the AC power. The power receiving device includes a rectifier that converts the received AC power into DC power, a DC converter that performs DC conversion on the DC power output from the rectifier, and a power-receiving side controller that calculates, based on an input voltage of the DC converter, a current command value making input impedance of the DC converter equal to a preset value and controls the DC converter so that an input current of the DC converter equals the current command value.
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Citations
18 Claims
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1. A power transmission system comprising:
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a power transmitting device configured to convert supplied alternating current (AC) or direct current (DC) power into AC power and transmit the converted AC power via a transmission path; and a power receiving device configured to receive the AC power via the transmission path, wherein the power receiving device comprises; a rectifier configured to rectify the AC power received via the transmission path to DC power; a DC converter configured to perform DC conversion on the DC power output from the rectifier; and a power-receiving side controller configured to calculate, based on an input voltage of the DC converter, a current command value making input impedance of the DC converter equal to a preset value and to control the DC converter so that an input current of the DC converter equals the current command value. - View Dependent Claims (2, 3, 4, 15, 16, 17, 18)
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5. A power receiving device of a power transmission system comprising:
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a resonator configured to receive AC power transmitted from a power transmitting device; a rectifier connected to the resonator and configured to convert the AC power into DC power; a converter configured to perform DC conversion on the DC power and output the converted result; and a controller having functions of calculating a current command value making input impedance of the converter equal to a predetermined value based on an input voltage input to the converter, controlling the converter based on the current command value, and transmitting the current command value to the power transmitting device. - View Dependent Claims (6, 7, 8, 9)
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10. A power transmitting device for a power transmission system comprising:
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an amplifier configured to control electric power supplied from a predetermined power source to output AC power; a resonator configured to transmit the AC power input from the amplifier to a power receiving device; an antenna configured to receive and output a current command value transmitted from the power receiving device; and a controller configured to control a gain of the AC power output from the amplifier based on the current command value input from the antenna. - View Dependent Claims (11, 12, 13)
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14. A power transmitting device of a power transmission system comprising:
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an amplifier configured to control power supplied from a predetermined power source to output AC power; a resonator configured to transmit the AC power input from the amplifier to a power receiving device; an antenna configured to receive and output a signal transmitted from the power receiving device; and a controller configured to control a gain of the AC power output from the amplifier based on the signal input from the antenna.
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Specification