摘要：In this paper, we propose a fuzzy sliding mode technique to avoid the chattering phenomena in traditional sliding mode controller (SMC). The use of the nonlinear sliding mode method provides very good performances for motor operation and robustness of the control law despite the external/internal perturbation. However, in SMC, the high frequency chattering phenomenon that results from the presence of the discontinuous term in traditional sliding mode control, is a several problem and highly undesirable. In this paper we use the fuzzy logic to reduce the chattering phenomena. To show the performances of this technique of control we have applied this method to control the speed of a permanent magnet synchronous machine. Simulation results are given to highlight the performances of the proposed control technique under load disturbances and parameter uncertainties.
关键词：PMSM; motor drives; robustness; fuzzy control; sliding mode control.
