A comparative analysis between a single loop PI, double loop PI and Sliding Mode Control structure for a buck converter

摘要

This paper presents the performance of a buck converter using three different types of control structures namely PI Controller based single loop structure, PI Controller based double loop control structure and Sliding mode Controller based control structure. The major objective of this work is to focus on the control structure of the buck converter to provide robust and accurate performance irrespective of any variation, either in the input side or in the output side or else in any parametric variations like Inductances and Capacitances variations. Moreover the result shows the efficacy of the sliding mode control to be much more reliable and efficient as compared to other two control structures. The entire system is simulated and results are obtained using MATLAB/Simulink platform.