To provide a support system for stabilizing the quality of supplied power, and determining conditions for satisfying persons for desiring the linkage of a distributed power supply when the distributed power supply is linked to a distribution network.
The support system is provided with: an acceptance limit calculating section 13 for calculating an acceptance limit of the distributed power supply at a designated time and a designated location of a distribution line based on information on the distribution system; a distributed power supply fluctuation estimating section 14 for predicting an output based on the previous output information of the distributed power supply; a storage apparatus capacity determining section 15 for determining a capacity of a storage apparatus provided parallel to the distributed power supply based on an output time transition; an injection power determining section 16 for determining injection power using an output fluctuation compensating function for overcoming imbalance between a demand and supply caused by an output fluctuation in the distributed power supply; a distribution system constitution optimizing section 17 for calculating a distribution network constitution for minimizing a distribution loss, supply impairing power, a voltage imbalance rate and high-frequency voltage distortion within a tolerance in a state that the distributed power supply is linked; and a transmitted voltage control section 18 for controlling a transmitted voltage so as to limit a voltage of the distribution system in the calculated distribution network constitution within a tolerance regardless of the magnitude of a load.
COPYRIGHT: (C)2007,JPO&INPIT
Takao Hirai
Koishi raw stone
Yasuhiro Hayashi
National University Corporation Fukui University
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