Extended State Observer-based Position Sensorless Control for Automotive Ultra-high-speed PMSM
作者单位：National Engineering Research Center of Electric VehiclesBeijing Institute of Technology State Key Laboratory of Automotive Safety and EnergyTsinghua University
会议名称：《2022中国汽车工程学会年会暨展览会》
会议日期：2022年
学科分类：08[工学] 082304[工学-载运工具运用工程] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程]
摘 要：Ultra-high-speed permanent magnet synchronous motor(PMSM) is widely used to drive fuel cell air compressors and electric turbochargers,and its high efficiency and stable control is an effective way to improve the power density of automotive power *** the installation space and detection reliability,the automotive ultra-high-speed PMSM is generally not equipped with a rotor position sensor,and the required high-precision rotor position information is obtained by a position sensorless control *** traditional position sensorless control method based on the extended back electromotive force(EEMF) uses the PI observation error compensator to estimate the EEMF for position *** PI parameter tuning is complicated,and the position estimation error becomes larger with the motor parameters change,which is easy to cause control ***,a novel EEMF-based position sensorless control method based on the extended state observer(ESO) is proposed in this *** the ultra-local model of the EEMF,the disturbance term isobserved by designing the *** estimated EEMF used for position estimation is calculated by a tracking *** method is simple to be tuned and can not only obtain more accurate rotor position information but also suppress the disturbance of motor parameters to a certain ***,the effectiveness of the proposed position sensorless scheme is verified on a 15 kW ultrahigh-speed PMSM by simulation tests.