MPPT Control Method of PV Based on subregional variable duty cycle

A new method is presented for variable duty cycle of photovoltaic subregional maximum power point tracking(MPPT).It has combined the advantages of the popular MPPT method ,In different areas of photovoltaic power generation using different duty cycle control method, Optimization of the target area using constant voltage method, Reached quickly determine the maximum power point (MPP) when light mutations.