Vector Control of High-Speed Permanent Magnet Synchronous Motor Based on Improved Sliding Mode Observer
作者单位：Beijing Institute of Control Engineering School of Electronic Information and Engineering Taiyuan University of Science and Technology
会议名称：《第40届中国控制会议》
会议日期：2021年
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0802[工学-机械工程] 0835[工学-软件工程] 080201[工学-机械制造及其自动化]
关 键 词：high-speed permanent magnet synchronous motor improved sliding mode observer phase locked loop rotor position Detection rotor flux observer
摘 要：In order to solve the chattering problem of sliding mode observer in rotor position detection of High-speed permanent magnet synchronous motor, an improved sliding mode observer for position detection of High-speed permanent magnet synchronous motor is proposed. Taking the sigmoid function as the switching function, the adaptive sliding mode gain related to the rotor speed is introduced, and the rotor flux estimation including the rotor position and speed information is derived. In order to eliminate the high frequency chattering in the rotor flux estimation, a rotor flux observer is designed. Finally, the rotor position and speed information is extracted by phase-locked loop. Simulink simulation results verify the feasibility and effectiveness of the method.