Fuzzy adaptive sliding mode control of fast tool servo system

In order to improve the tracking control precision of fast tool linear servo system driven by permanent magnet synchronous linear motor( PM LSM) under the high frequency input signal,a fuzzy adaptive sliding mode control algorithm was designed. The tracking control was performed with the sliding mode control,and the fuzzy approximation of discontinuous control amount in the traditional sliding model controller was carried out with the fuzzy adaptive control method. M eanwhile,the uncertain factors in the practical operating system were compensated,and the corresponding adaptive algorithm was designed to compensate the lack of fuzzy control lawand thus to effectively reduce the chattering. The simulated results showthat the proposed algorithm can perfectly solve the high frequency tracking problem of servo system,and has faster response speed and stronger robustness to load disturbances.