DISTRIBUTED POWER GENERATION SYSTEM AND METHOD FOR OPERATING SAME

摘要

A distributed power generation system according to the present invention is connected to a power line (33) connecting a commercial power supply (21) and an electrical load (24). On the power line (33), a second power generator (29) is connected between the commercial power supply (21) and a first connection point (23). The distributed power generation system includes: an inverter (25) connected to the first connection point (23); a first power generator (27); a current sensor (22) provided on the power line (33) between the commercial power supply (21) and the first connection point (23); and a controller (26). In a case where a current flowing in a direction from the first connection point (23) to the commercial power supply (21) is a positive current, in a state where the inverter (25) is disconnected, the controller (26) determines that there is an abnormality in an installation of the current sensor (22), or gives a notification of the abnormality in the installation of the current sensor (22), if differential power that is obtained by subtracting power consumed by the electrical loan (24) from output power of the inverter (25) is greater than a first threshold greater than 0.