配電線末端の太陽光発電システム用パワーコンディショナの挙動に関する実験的検討

抄録

Reverse power flow from a photovoltaic power generation system to distribution system is limited below a certain limit value. The behavior of a power conditioning system (PCS) for large capacity photovoltaic power generation system when the output power approached the output power limit value was experimentally estimated. Under the condition, the PCS became uncontrollable. It was pointed out that this phenomenon was caused by maximum power point tracking (MPPT) control of the PCS. Furthermore, some methods to avoid the uncontrollable condition of PCS were shown.