The Application of Sliding-Mode Control in Buck Three-Level Converter

Sliding-mode control has the advantages of robustness and good dynamics performance,so this paper take three-level converters for example to treatise the sliding-mode control and the design of sliding-mode control Buck three-level converter,particularly discussing the effect of system performance of sliding-mode control surface design,equivalent control stability and existence proof.In the end,simulation testing of sliding-mode control buck TL converter and tradition stability PWM Buck TL converter were carried out in order to analyze and compare,analysis verify that robustness and dynamics performance are improved greatly in the sliding-mode control Buck TL converter.