| 摘要 |
<P>PROBLEM TO BE SOLVED: To construct a rational system in capacity, voltage and power supply efficiency in a power supply system for linking a private power generation system in which a storage battery facility is coupled to a plurality of types of private power generation facilities, to a commercial power supply. <P>SOLUTION: A bus of a private power generation system is set to a DC line, the storage battery facility and the private power generation facility are coupled to the bus, a main facility having a generation power capacity is coupled directly to the DC line, and the other facility obtains voltage matching via a step-up or step-down chopper. When the storage battery or a private power generator which is larger than a power capacity requested by the system is used, in the storage battery facility or the private power generation facility, the number of cells of the storage battery or the number of serial connecting private power generators is reduced to be matched to the power capacity requested by the system, and a voltage difference with the DC voltage of the private power generation system is matched by the step-up/step-down chopper. The chopper is an opening/closing means for disconnecting the storage battery facility or the private power generation facility from the private power generation bus. <P>COPYRIGHT: (C)2004,JPO |
