Modeling and realization of photovoltaic simulator based on a buck DC-DC converter

This paper presents a simple accurate model for photovoltaic (PV) modules suitable for implementation by digital signal processors (DSPs). A buck DC-DC converter is employed to realize the PV characteristic appropriately. Three controllers set forth for current control according to PV voltage to achieve fast and accurate convergence. Computer simulation results are presented to investigate the effectiveness of the proposed PV system. Moreover, a practical setup is made and the proposed method using the obtained model for different temperatures and solar irradiations is tested in MATLAB/Simulink environment.