Research of Maximum Power Point Tracking for Photovoltaic with Buck Chopper

This paper introduces the principles of photovoltaic maximum power point tracking (MPPT), and an ARM- based MPPT system with Buck Chopper is proposed. In this system, it is used for realizing maximum power point tracking that one-dimensional squeezing optimal method based on golden section method. Experiment research is proceeded to the MPPT system with resistance-load, the data show that the photovoltaic cells' output power increases obviously.