Patent ID: 8401712

Claim:
A control method for systematically controlling a plurality of distributed power sources having different responsive capabilities for a load disturbance, the distributed power sources including an electricity storage device, and a power source having a responsive capability equal to or lower than that of the electricity storage device, the method comprising: outputting a power from the electricity storage device based on a difference value between a load electric power and a power from the power source, at the same time as outputting the power from the power source based on the load electric power; obtaining a component to be compensated for using the power source based on a difference value between a remaining capacity of the electricity storage device and a target remaining capacity; and obtaining an output specification value of the power source based on the load electric power; adding the component to be compensated for to the output specification value to thereby obtain an output power of the power source, the output power of the power source being greater than the load electric power; outputting the output power of the power source from the power source; and charging the electricity storage device with the output power of the power source in order to match total of the output power of the power source and an output power of the electricity storage device with the load electric power.