重庆理工大学学报2024，Vol.38Issue(5)：33-45,13.DOI:10.3969/j.issn.1674-8425(z).2024.03.004
车辆线控转向系统的永磁同步电机谐波抑制策略
Harmonic suppression strategy of permanent magnet synchronous motor for vehicle steer-by-wire system
摘要
Abstract
To solve the problem of phase current distortion caused by harmonic current in permanent magnet synchronous motor of vehicle steer-by-wire system and improve the tracking performance of vehicle lateral control and the accuracy of aligning torque estimation, this paper proposes a harmonic suppression strategy for permanent magnet synchronous motor based on extended state observer and integral sliding mode controller. The extended state observer is employed to estimate the dq current of the fundamental current loop of the motor, and the decoupling and disturbance compensation are completed. According to the 5th and 7th harmonic currents extracted from the estimated current, the integral sliding mode controller is designed to realize the decoupling and suppression of the harmonic current. The simulation model of motor towing and vehicle is built by Carsim and Matlab/Simulink simulation platform. Our results show our strategy is effective in suppressing the 5th and 7th harmonic currents at rated speed and over rated speed, improving the accuracy of motor angle control and that of aligning torque estimation.关键词
线控转向/永磁同步电机/扩张状态观测器/积分滑模观测器/谐波电流抑制Key words
steering-by-wire/permanentmagnet synchronous motor/extended state observer/integral sliding mode controller/harmonic current suppression分类
交通工程引用本文复制引用
张君,龙安源,王伟,屈翔..车辆线控转向系统的永磁同步电机谐波抑制策略[J].重庆理工大学学报,2024,38(5):33-45,13.基金项目
重庆市科委应用开发计划项目(cstc2014yykfB70008) （cstc2014yykfB70008）
