マルチストリング対応MPPT機能を有する太陽光発電システム用ストリングパワーコンディショナ

抄録

we have developed a new power conditioner for residential photovoltaic system which equips 5 DC-DC converters at most with independent maximum power point tracking control. Each DC-DC converter is connected to a string which consists of several photovoltaic modules on a roof, so every string can be independently operated at maximum power point. That means mismatch power losses of MPPT (Maximum Power Point Tracking) control have decreased to almost nothing, and then, it has expanded a possibility of layout of photovoltaic modules' location on roofs.