The Research of Photovoltaic MPPT Controller Based on DSPF2812

PV output characteristic curve has a close relationship with the light, temperature and other factors of working environment, and has a significant nonlinear characteristics. In order to achieve maximizing the output power of the PV system, it is needed to track the maximum output power point of the photovoltaic cell. The paper introduces a streamlined design that a photovoltaic inverter control system based on DSPF2812 to achieve maximum power tracking. This design proposes a variable perturbation analysis method to implement the MPPT control, and uses the combination of boost circuit and DSPF2812 to complete the MPPT controller. Finally, the feasibility of MPPT controller is verified through the simulation experiments. The results show that the design is not only a simple circuit design and a flexible control method, but also the most important is that it can effectively accomplish the purpose of the maximum power tracking.