Power transmission system including power transmitter and power receiver
First Claim
1. A system comprising:
- one or more power transmitters, each of which includes a modulator and is connected to a power supply;
a plurality of power receivers, each of which includes a demodulator and is connected to a corresponding one of a plurality of loads;
one or more power transmission lines, through which the one or more power transmitters are connected with the plurality of power receivers; and
a controller that;
(A) acquires information on optimum power for maximizing transmission efficiency in the one or more power transmission lines, and information on a plurality of power demands respectively requested by the plurality of loads,(B) routes, based on the information on the optimum power, transmission power from the one or more power transmitters to at least one selected from the plurality of power receivers, the transmission power being equal to or smaller than the optimum power,(C) when a total of the plurality of power demands is larger than the optimum power, requests that another controller controls supplementary power to be supplied from another power supply to the one or more power transmission lines, and(D) when the total of the plurality of power demands is smaller than the optimum power, notifies the other controller that surplus power of the one or more power transmitters is available,wherein the modulator determines whether or not to reverse a direction of a current of at least part of power from the power supply according to whether each bit of a modulation code sequence is a first value or a second value; and
the demodulator, which is included in the selected at least one of the plurality of power receivers, determines whether or not to reverse a direction of a current of at least part of the routed transmission power according to whether each bit of a demodulation code sequence is the first value or the second value.
1 Assignment
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Accused Products
Abstract
A power transmission system includes: a power transmitter connected to a power supply; a plurality of power receivers respectively connected to a plurality of loads; a power transmission line connecting the power transmitter and the plurality of power receivers; and a controller. The controller acquires information on optimum power for maximizing transmission efficiency in the power transmission line and information on power demands requested by the loads, and routes transmission power from the power transmitter selectively to the plurality of power receivers. The transmission power is equal to or smaller than the optimum power. When a total power demand is larger than the optimum power, the controller requests another controller to supply supplementary power. When the total power demand is smaller than the optimum power, the controller notifies the other controller that surplus power is available.
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Citations
9 Claims
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1. A system comprising:
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one or more power transmitters, each of which includes a modulator and is connected to a power supply; a plurality of power receivers, each of which includes a demodulator and is connected to a corresponding one of a plurality of loads; one or more power transmission lines, through which the one or more power transmitters are connected with the plurality of power receivers; and a controller that; (A) acquires information on optimum power for maximizing transmission efficiency in the one or more power transmission lines, and information on a plurality of power demands respectively requested by the plurality of loads, (B) routes, based on the information on the optimum power, transmission power from the one or more power transmitters to at least one selected from the plurality of power receivers, the transmission power being equal to or smaller than the optimum power, (C) when a total of the plurality of power demands is larger than the optimum power, requests that another controller controls supplementary power to be supplied from another power supply to the one or more power transmission lines, and (D) when the total of the plurality of power demands is smaller than the optimum power, notifies the other controller that surplus power of the one or more power transmitters is available, wherein the modulator determines whether or not to reverse a direction of a current of at least part of power from the power supply according to whether each bit of a modulation code sequence is a first value or a second value; and the demodulator, which is included in the selected at least one of the plurality of power receivers, determines whether or not to reverse a direction of a current of at least part of the routed transmission power according to whether each bit of a demodulation code sequence is the first value or the second value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power transmission system comprising:
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one or more power transmitters, each of which includes a modulator and is connected to a power supply; a plurality of power receivers, each of which includes a demodulator and is connected to a corresponding one of a plurality of loads; one or more power transmission lines, through which the one or more power transmitters are connected with the plurality of power receivers; and a controller that; (A) acquires information on optimum power for maximizing transmission efficiency in the one or more power transmission lines, and information on a plurality of power demands respectively requested by the plurality of loads, (B) routes, based on the information on the optimum power, transmission power from the one or more power transmitters to at least one selected from the plurality of power receivers, the transmission power being equal to or smaller than the optimum power, (C) when a total of the plurality of power demands is larger than the optimum power, requests that another controller controls supplementary power to be supplied from another power supply to the one or more power transmission lines, and (D) when the total of the plurality of power demands is smaller than the optimum power, notifies the other controller that surplus power of the one or more power transmitters is available, wherein the controller, in (A), acquires information on a plurality of correspondence relations, each between one or more paths selected from a plurality of paths on the one or more power transmission lines and the transmission efficiency with which a predetermined power is transmitted through the selected one or more paths, and determines, based on the information on the plurality of correspondence relations, the predetermined power that maximizes the transmission efficiency as the optimum power.
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Specification