High-order sliding-mode control for DC-DC converters

A high-order sliding mode control for DC-DC converter is presented. DC-DC converter with high-order sliding mode controller not only presents robustness against parameter uncertainties, load perturbation and fast dynamic response, but also reduces the chattering effect of traditional first-order sliding mode control. This paper introduces a finite states machine structure based high-order sliding mode control of DC-DC converter. The proposed controller can be designed just with the knowledge of rough parameter values of DC-DC converter. Simulation results are presented to verify the proposed method.