Thrust ripple suppression strategy for PMLSM based on enhanced ESO repetitive control with second-order generalized integrator

ZHANG Guoqiang; TONG Bingbing; LI Binxing; DING Dawei; WANG Qiwei; WANG Gaolin; XU Dianguo

doi:10.15938/j.emc.2026.03.002

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Thrust ripple suppression strategy for PMLSM based on enhanced ESO repetitive control with second-order generalized integrator

更新时间：2026-09-28

- Thrust ripple suppression strategy for PMLSM based on enhanced ESO repetitive control with second-order generalized integrator
- Vol. 30, Issue 3, Pages: 10-19(2026)
- 作者机构：
  
  (哈尔滨工业大学电气工程及自动化学院, ),黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.15938/j.emc.2026.03.002
  CLC： TM351
- Published：2026
- 稿件说明：
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ZHANG Guoqiang, TONG Bingbing, LI Binxing, et al. Thrust ripple suppression strategy for PMLSM based on enhanced ESO repetitive control with second-order generalized integrator[J]. 2026, 30(3): 10-19.
DOI：

ZHANG Guoqiang, TONG Bingbing, LI Binxing, et al. Thrust ripple suppression strategy for PMLSM based on enhanced ESO repetitive control with second-order generalized integrator[J]. 2026, 30(3): 10-19. DOI： 10.15938/j.emc.2026.03.002.

摘要

永磁同步直线电机(PMLSM)驱动系统中由定位力引发的复杂推力波动严重制约其控制性能。因此

提出基于二阶广义积分器(SOGI)增强型扩张状态观测器(ESO)重复控制的PMLSM推力波动抑制策略。首先

构建具有周期性误差跟踪特性的重复控制进行定位力二次扰动抑制。在此基础上

提出SOGI增强型ESO(SOGI-ESO)实现推力波动中剩余扰动抑制

利用SOGI带通滤波特性提升ESO对特定频率扰动的观测能力

在实现非周期扰动抑制的同时对定位力二次扰动进行进一步补偿。实验结果表明

所提抑制策略能够有效抑制PMLSM系统复杂推力波动

进而提升PMLSM系统控制品质。

Abstract

The complex thrust ripple caused by detent force in the drive system of permanent magnet linear synchronous motor(PMLSM)severely restricts its control performance. A thrust ripple suppression strategy for PMLSM based on enhanced extended state observer(ESO)repetitive control with second-order generalized integrator(SOGI)was proposed. Firstly

a repetitive control with periodic error tracking characteristics was constructed to suppress the detent force secondary perturbation. On this basis

the SOGI-enhanced ESO(SOGI-ESO)was proposed to realize the residual disturbance suppression in thrust ripples

and the SOGI bandpass filtering feature was used to improve the observation ability of ESO on specific frequency disturbances

and the secondary disturbance of detent force was further compensated while realizing the non-periodic disturbance suppression. Experimental results show that the proposed suppression strategy can effectively suppress the complex thrust ripple of the PMLSM system

and then improve the control quality of the PMLSM system.

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