High Efficiency and Low cost Tightly of Solar Array Simulator with Optimal Design of LLC Resonant Converter

In this paper, a high- efficiency solar array simulator (SAS) implementedby optimal design of LLC resonant dc-dc converter is proposed to save the cost and energy of photovoltaic (pv) system testing. The proposed converter has zero-voltage switching (ZVS) operation of the primary switches and zero-current switching (ZCS) operation of the rectifier diodes. This causes the LLC resonant converter has several advantages such as high efficiency, low electromagnetic interference (EMI) and high power density. This paper, based on the theoretical analysis provides a detailed practical design aspect of full bridge LLC resonant converter. Finally, simulation of 500w LLC resonant converter is carried out using MATLAB/SIMULINK and the results verified.