Chattering avoidance high order sliding mode control for permanent magnet synchronous motor

Aiming at the chattering problem to sliding mode control systems for permanent magnet synchronous motor (PMSM), a control strategy named as high order sliding control (HOSM) with chattering avoidance is presented. A feedback linearization technology was adopted for the nonlinear model of PMSM. After the decouple analysis, the high order sliding mode controller was designed for PMSM. The HOSM strategy is applied to PMSM experiments based on dSPACE platform. Compared with traditional sliding mode control, HOSM control can remove system chattering and enhance the dynamic performance of the control systems. The experiment results verify the feasibility and effectiveness of the proposed strategy.