Fractional order sliding-mode control for permanent magnet synchronous motor
基于分数阶滑模控制技术的永磁同步电机控制

To deal with the chattering phenomenon existing in conventional integral order sliding-mode controller, we proposed a fractional order sliding-mode controller and apply to control the permanent magnet synchronous motor (PMSM). The soft-switching will not directly act on the sliding-mode surface or on its integral order derivative, but on its fractional order derivative. According to the property of fractional calculus, this action will reduce the chattering. Moreover, the fuzzy logic inference algorithm is used to obtain the gain of soft-switching. Simulations and experiments show that the proposed fractional order sliding-mode controller not only achieves better control performance than the conventional integral slidingmode control systems, but is also robust with regard to system parameter variations and external disturbances.