To address the issues of high jitter and low precision of the traditional sliding mode observer in the operation of positionless control system of PMSM, a new fuzzy sliding mode observer is designed and use a new segmentation function to replace the symbolic function to achieve the effect of weakening the jitter. And design a slide-mode controller to control the reaching law, and the dynamic response speed is increased by adapting the thickness of the sliding mode boundary layer in real time. The model is built using MATLAB/Simulink in the pape...
