246. Research and Simulation of Photovoltaic Cells and its Maximum Power Point Tracking Method

The modeling of photovoltaic cells is done according to its mathematical model in this article. Furthermore, a new Maximum Power Point Tracking (MPPT) control method is proposed which applies CV (Constant Voltage) algorithm to adjust the working point of photovoltaic (PV) cells near the MPP (Maximum Power Point) for fast tracking when working point is far from MPP, and uses adapting duty cycle perturb method to optimize the steady state characteristic of MPP for effectively eliminating the output power oscillation under the setting precision. The simulation results verify the correctness of the model and also show that the proposed method tracks the MPP exactly and quickly, improves the energy conversion efficiency, static and dynamic performance of PV system.