| 摘要 |
PURPOSE: An apparatus for controlling a MPPT(Maximum Power Point Tracking) invertors in a photovoltaic generation system is provided to eliminate the degradation of a MPPT function due to the temperature difference between sectors by successively cooling each sector in a photovoltaic generation array. CONSTITUTION: A temperature compensation sensor(24) is respectively installed in a plurality of photovoltaic generation array sectors which partitions a photovoltaic generation array by section. The temperature compensation sensor senses temperature change in the photovoltaic generation array sector in response of cooling water injection. A temperature compensation circuit(26) generates a temperature value which is compensated as a temperature signal transmitted from the temperature compensation sensor. A MPP(Maximum Power Point Tracking) inverter(10) corrects an temperature detection error at a current maximum power point tracking operation by referring to a temperature value corrected in the temperature compensation circuit. The temperature compensation circuit generates a mean value of the temperature signal into the temperature value corrected. |
