Power conditioner for photovoltaic power generation and photovoltaic power generation system

摘要

A power conditioner 10 for solar power generation includes a current detecting section 3, a voltage detecting section 4, a DC / AC conversion circuit 5, and a control section 6.This control sectionIt is longer than the period in which the transient shadow is possible.AndIn the first period of time during the initial period of installation of multiple solar panelsThe first integrated value obtained by integrating the DC power supplied from the solar panel group is obtained.Based on the ratio of the first integrated value of each solar panel group to the first average value averaged by the number of multiple solar panel groupsIt is configured to detect an abnormality of DC power supplied from a plurality of solar panel groups.