Patent ID: 7312539

Claim:
A dispersed power source managing system comprising: a plurality of dispersed power sources linked to a high-voltage-to-low-voltage transformer of a commercial power system; and a management unit for managing the plurality of dispersed power sources; wherein the dispersed power sources each comprise: a DC power source; a transformer for transforming a DC power from the DC power source into an AC power and outputting the AC power; a storage battery; a voltage detector for detecting a voltage at a power receiving point; an output suppressor for suppressing the AC power to be supplied to the power receiving point when the voltage at the power receiving point exceeds an upper limit of a proper value and supplying an electric power to the storage battery; an output suppression canceller for canceling the output suppression by the output suppressing means when the voltage at the power receiving point becomes equal to or lower than the upper limit of the proper value; a transmitter for transmitting an output suppression start signal and an output suppression cancel signal to the management unit on the basis of outputs of the output suppressing means and the output suppression canceling means; and a receiver for receiving an output suppression command signal and an output suppression cancel command signal for operating the output suppressing means and the output suppression canceling means from the management unit, and wherein the management unit comprises: a receiver for receiving the output suppression start signal and the output suppression cancel signal from each of the dispersed power sources and a transmitter for transmitting the output suppression command signal and the output suppression cancel command signal to each of the dispersed power sources.