车用PMSM无位置传感器控制的瞬态性能提升方法

doi:10.19562/j.chinasae.qcgc.2025.05.008

Abstract

Abstract:

A speed loop optimization strategy based on cascaded extended state observer （ESO） is proposed to address the insufficient transient response of permanent magnet synchronous motor （PMSM） for steering power oil pump application in pure electric commercial vehicles. An extended Kalman filter （EKF） is designed as the basis of position sensorless control， with the adaptive design to avoid the problems of complicated parameter tuning and slow convergence. The anti-disturbance and tracking ability of the speed loop is improved by the cascaded observation of internal and external disturbances， and the use of the linear state error feedback control rate （LSEFC） for replacement of the traditional PI controller. The bench tests show that the sensorless control scheme proposed in this paper significantly reduces the position estimation error under dynamic and steady-state conditions， with a steady-state error of only 1.4°. The optimized speed loop control effectively improves the system's performance of disturbance rejection and transient response. The reliability test shows that the steering power motor controller operates stably without performance failure.

Key words: permanent magnet synchronous motor, position sensorless control, extended Kalman filter, extended state observer

Cheng Lin,Yao Xu,Hong Zhang,Jilei Xing,Xichen Li. Transient Performance Enhancement Method for Position Sensorless Control for Automotive PMSMs[J].Automotive Engineering, 2025, 47(5): 875-887.

Figures/Tables 13

References 27

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电机参数	数值	电机参数	数值
额定功率/ kW	3	磁极对数	4
峰值功率/kW	6	定子电阻/Ω	1.12
额定转矩/（N·m）	23	d轴电感/mH	12.52
额定电流/A	10	q轴电感/mH	23.37
额定转速/（r·min^-1）	1 500	永磁磁链/Wb	0.263
额定流量/（L·min^-1）	16	安全阀压力/MPa	18

电机转速/ （r·min^-1）	负载转矩/ （N·m）	PLL+PI/ （r·min^-1）	PLL+ADRC/ （r·min^-1）	本文方法/ （r·min^-1）
750	10-加载	90	26	26.5
	10-卸载	72	20	25.5
	25-加载	195	56.5	59
	25-卸载	170	49.5	70
1 500	10-加载	65.5	44	21.4
	10-卸载	55	27	24.5
	25-加载	185	147	52.8
	25-卸载	163	18	76.4

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Transient Performance Enhancement Method for Position Sensorless Control for Automotive PMSMs

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