Study on multi-segment sliding-mode-control-based servo system

This paper introduced a multi-segment sliding mode control method for a permanent magnet synchronous motor (PMSM). To solve the problem of parameter variations and load disturbance in servo control system, the method to design sliding mode controller was analyzed thoroughly. Multi-segment sliding mode controller was proposed with the ability to improve robustness of the system effectively. Experimental results show that the system with multi-segment sliding mode controller has good robustness and fast response.