Research on Sliding Mode Control and Fuzzy Control Strategies of Motor Drive System for New Energy Vehicles

Abstract

Traditional sliding mode variable structure control or traditional fuzzy PI control is often used in the permanent magnet synchronous motor (PMSM) vector control system. But the sliding mode control algorithm has the problem of chattering, and the fuzzy control algorithm has the problems of poor speed tracking effect, large torque ripple and poor control accuracy. In response to the above problems, this paper proposes to combine sliding mode control and fuzzy PI control into a control system, and builds simulation models in MATLAB/Simulink for comparative research. The results show that the control strategy in this paper can improve the overall control performance and control accuracy of the control system.