Multi-Phase Sliding Mode Control for Chattering Suppression in a DC-DC Converter

This paper presents a Multi-Phase Sliding Mode( MPSM) Control Strategy for solving chattering issues inherently existing in DC-DC converters. The main idea of the proposed methodology is to implement a MPSM Control for geometrically nullifying the amplitude of ripple currents yielded by the switching patterns. The benefits of the proposed Multi-Phase Sliding Mode Control strategy involve low-switching frequency contributing to reduce switching power loss and leading to simplification of circuit topology. Throughout the experimental implementation, the concepts of control strategies were validated and the advantages of the proposed strategy were confirmed such as low-switching power loss, and simple circuit structure compared to traditional multi-phase SMC implementations.