Design and implementation of programmable PV simulator

Digital controlled SMPS's (Switched Mode Power Supply) have many benefits and advantages. Nowadays they are highly preferred instead of analog (linear) power supplies due to their high efficiency, small size, and flexibility. In this paper a buck converter which has an output voltage of 0-30V and output current of 0-5A is designed step by step. At this process its calculations and simulations are performed. This converter can process in constant voltage and constant current modes. Also a PV (Photovoltaic) Simulator which can simulate the power output characteristics of various PV panels is added to our device. Lastly, a MATLAB GUI interface is designed to communicate with computer for obtaining the desired PV characteristic.