High-precision control of LSRM based X–Y table for industrial applications

The design of an X–Y table applying direct-drive linear switched reluctance motor (LSRM) principle is proposed in this paper. The proposed X–Y table has the characteristics of low cost, simple and stable mechanical structure. After the design procedure is introduced, an adaptive position control method based on online parameter identification and pole-placement regulation scheme is developed for the X–Y table. Experimental results prove the feasibility and its priority over a traditional PID controller with better dynamic response, static performance and robustness to disturbances. It is expected that the novel two-dimensional direct-drive system find its applications in high-precision manufacture area.