Power system and method for supplying AC power
First Claim
1. A power system electrically connected to a power consuming unit and allowing transfer of AC power to/from said power consuming unit, comprisinga plurality of electric vehicles each configured to be able to supply AC power;
- whereinsaid plurality of electric vehicles are commonly connected electrically to said power consuming unit; and
each of said plurality of electric vehicles includes;
a rechargeable electric storage unit,an AC power generating unit receiving discharge power from said electric storage unit for generating AC power,a supply line for electrically connecting said AC power generating unit and said power consuming unit,first AC voltage detecting means for detecting an AC voltage appearing on said supply line, andfirst control means for controlling said AC power generating unit such that when the AC voltage appears on said supply line, an AC current synchronized with the detected AC voltage is generated.
1 Assignment
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Accused Products
Abstract
Upon receiving a supply start instruction, each vehicle (2, 3, 4) transmits its own identification ID to other vehicles (sequence SQ12, SQ14, SQ16). A vehicle (2) determining that it is a master itself performs notification of master to the vehicles (3, 4) (sequence SQ20) and begins generation of an AC voltage conforming to its own period (sequence SQ22). Each vehicle (3, 4) generates an AC current synchronized with a voltage reference which is the AC voltage generated from the vehicle (2) (sequence SQ26a, SQ26b). In this way, the vehicles (2, 3, 4) cooperate to begin power supply to a power load.
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Citations
15 Claims
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1. A power system electrically connected to a power consuming unit and allowing transfer of AC power to/from said power consuming unit, comprising
a plurality of electric vehicles each configured to be able to supply AC power; - wherein
said plurality of electric vehicles are commonly connected electrically to said power consuming unit; and each of said plurality of electric vehicles includes; a rechargeable electric storage unit, an AC power generating unit receiving discharge power from said electric storage unit for generating AC power, a supply line for electrically connecting said AC power generating unit and said power consuming unit, first AC voltage detecting means for detecting an AC voltage appearing on said supply line, and first control means for controlling said AC power generating unit such that when the AC voltage appears on said supply line, an AC current synchronized with the detected AC voltage is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- wherein
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10. A power system electrically connected to a power consuming unit and allowing transfer of AC power to/from said power consuming unit, comprising
a plurality of electric vehicles each configured to be able to supply AC power; - wherein
said plurality of electric vehicles are commonly connected electrically to said power consuming unit; and each of said plurality of electric vehicles includes; a rechargeable electric storage unit, an AC power generating unit receiving discharge power from said electric storage unit for generating AC power, a supply line for electrically connecting said AC power generating unit and said power consuming unit, a supply voltage detecting unit detecting a voltage appearing on said supply line, and a control unit; and said control unit controls said AC power generating unit such that, when said supply voltage detecting unit detects an AC voltage appearing on said supply line, an AC current synchronized with the detected AC voltage appears.
- wherein
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11. A method of supplying AC power for supplying AC power from a plurality of electric vehicles each capable of supplying AC power, to a power consuming unit, wherein
each of said plurality of electric vehicles includes; -
a rechargeable electric storage unit, an AC power generating unit receiving discharge power from said electric storage unit and generating AC power, and a supply line for electrically connecting said AC power generating unit to said power consuming unit; said AC power supplying method comprising the steps of each of said plurality of electric vehicles detecting an AC voltage appearing on said supply line; and controlling said AC power generating unit such that, in said electric vehicle having said AC voltage appearing on said supply line, an AC current synchronized with the detected AC voltage is generated. - View Dependent Claims (12, 13, 14, 15)
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Specification