Performance Analysis for LLC Resonant Converter in Electric Vehicle Applications

This paper explains performance analysis of LLC resonant converter for electric vehicle applications. Due to their exceptional efficiency and minimal switching losses, LLC resonant converters are often used. In this study, small signal modelling methods based on extended describing function (EDF) are used to investigate the behaviour of LLC resonant converters. This paper also examines the effect of variable frequency control in LLC resonant converter on its input impedance. In addition, MATLAB Simulink simulation platform is used to develop and apply modeling approaches to validate. Control to output voltage of LLC converters are derived in this paper to evaluate model's accuracy.