In power control mannered null electric power system of the private power generation equipment in the private power generation system and the said system which can combine accumulator equipment

摘要

PROBLEM TO BE SOLVED: To provide a utility-connected private power generation system wherein a storage battery facility and a privately-owned electrical power facility can be controlled, in an integrated manner and a control method for the output of the privately-owned electrical power facility in this system.;SOLUTION: The private power generation system 1 connected to a system power supply 3 includes a privately-owned electrical power facility 11 whose output is controllable; a storage battery facility 12 constructed of a storage battery 121 that can be charged/discharged and an output controlling means 122 for controlling charging/discharging current; an interconnection line load flow detection unit 16 that detects a load flow in an interconnection line 31; a storage battery facility output detection unit 17 that detects the charging/discharging power of the storage battery facility 12; and a privately-owned electrical power facility output control means. The storage battery facility 12 controls the output of a storage battery so that the interconnection line load flow becomes equal to a set value of interconnection line load flow, based on fluctuation in interconnection line load flow. The privately-owned electrical power facility controls the output of a privately-owned electrical power facility so that the sum of the interconnection line load flow and the output of the storage battery becomes equals the set value of interconnection line load flow.;COPYRIGHT: (C)2008,JPO&INPIT