电机与控制应用2026，Vol.53Issue(4)：372-381,10.DOI:10.12177/emca.2026.143
一种开绕组六相永磁同步电机单相上桥臂故障的模型预测容错控制方法
A Model Predictive Fault-Tolerant Control Method for an Open-End Winding Six-Phase PMSM with a Single Upper-Arm Fault
陈慧莹 1张志锋1
作者信息
- 1. 沈阳工业大学 电气工程学院,辽宁 沈阳 110870
- 折叠
摘要
Abstract
[Objective]An improved method based on an optimized control set is proposed to address the issues of harmonic currents and torque ripple in the model predictive control(MPC)system of an open-end winding six-phase permanent magnet synchronous motor under single upper-arm faults.[Methods]Based on the vector space decoupling theory,the voltage vectors under single upper-arm faults and their distribution characteristics in both fundamental and harmonic planes were derived and analyzed.To ensure high voltage utilization,virtual vector synthesis was implemented.Addressing the challenge of selecting appropriate basic voltage vectors using conventional convex hull methods,an optimized control set-based model predictive fault-tolerant control(MPFTC)method was proposed in this study.Through post-fault vector characteristic analysis,an optimized control set was selected from the G5 vector group,and its impact on harmonic currents and torque ripple performance was evaluated.Comparative simulations between conventional MPC and the proposed optimized control set-based MPFTC method were conducted under fault conditions.[Results]The simulation results demonstrated that the proposed MPFTC method effectively reduced the total harmonic distortion of the current from 50.54%to 5.96%under fault conditions,with the third-order harmonic component suppressed below 5%.Additionally,the electromagnetic torque exhibited only a transient drop of 1 N·m and recovered within 10 ms,successfully mitigating the untreated 50 Hz oscillation with an amplitude of±50 N·m.[Conclusion]The proposed MPFTC method demonstrates significant effectiveness in harmonic suppression and torque ripple control,verifying its strong fault tolerance and engineering application value.关键词
永磁同步电机/单相上桥臂故障/谐波电流/转矩脉动/模型预测容错控制Key words
permanent magnet synchronous motor/single upper-arm fault/harmonic current/torque ripple/model predictive fault-tolerant control分类
信息技术与安全科学引用本文复制引用
陈慧莹,张志锋..一种开绕组六相永磁同步电机单相上桥臂故障的模型预测容错控制方法[J].电机与控制应用,2026,53(4):372-381,10.
