| 摘要 |
<p>A fault diagnosis method of diagnosing a fault related to a PV PCS 150, configured to perform an interconnected operation in which a PV 100 is interconnected to a grid 10: supplies power from independent operation output of the PV PCS 150 to a storage PCS 250 by an independent operation that does not interconnect the PV 100 to the grid 10 after the grid interconnection apparatus stops the interconnected operation by detecting abnormality; measures an output power state of the PV 100 and/or the PV PCS 150 when power is supplied to the storage PCS 250; and determines that the fault occurs and performs an error process for notification to a user when the measured output power state does not satisfy a predetermined condition.</p> |
