Photovoltaic power generation system, operating point correction device used therefor, and operating point correction method

摘要

PROBLEM TO BE SOLVED: To accurately perform power adjustment with an MPPT system even when a plurality of peaks of output power exist by partial shade of a photovoltaic power generation panel, in a case where a power adjustment device of the MPPT system operating only in a predetermined operation voltage range is used.SOLUTION: The DSP of an operation point correction device 2 performs control so that output voltage Vbecomes close to voltage V' within an operation range of an MPPT device and output terminal voltage Vof a solar battery panel 1 follows target voltage V. Consequently, the operation point correction device 2 performs control so that the solar battery panel 1 performs optimal operation at a maximum power point within the operation range of the MPPT device 3.