Research on PV Water Pumping System Based on SVPWM and Its TMPPT

According to the nonlinear characteristic of solar cell output, the TMPPT of solar cell is studied and the tracking control strategy applying varying voltage step disturbing is presented. Combining with the charging and discharging curve of battery, the favorable management study on it is done. The software and hardware of photovoltaic charging system is designed based on the microprocessor JK3, and the some experiments on the TMPPT of solar cell are done with solar cell array simulator. The above control strategy is proved to be effective and better by experiment results.