Speed Control of PMSMs Using Chattering-Free Sliding Mode And Model Predicted Control

To improve the disturbance rejection and rapid response of permanent magnet synchronous motors (PMSMs), traditional sliding mode control (SMC) has been commonly used. However, the SMC has a serious problem of chattering. To address this, this study introduces a chattering-free sliding mode speed controller (CFSMC). This controller is designed to enhance system robustness against internal parameter variations and mitigate chattering from high-frequency switching. Furthermore, in the current loop, the Model Predictive Current Control (MPCC) strategy is also adopted to further enhance the system's rapid response performance. The effectiveness and practicality of the proposed approach are validated through comprehensive simulations and experiments.