电工技术学报2016，Vol.31Issue(20)：93-101,9.
五相永磁同步电机缺相运行的建模与控制
Modeling and Control of Five-Phase Permanent Magnet Synchronous Motor with One Phase Open-Circuit Fault
摘要
Abstract
To improve the reliability of five-phase permanent magnet synchronous motor (PMSM) control system and reduce the ripple components of output torque when the stator windings occur open-circuit fault, this paper proposed an effective fault-tolerant control strategy for five-phase PMSM. Based on the viewpoint of vector space decoupling, a mathematical model of the five-phase PMSM with third harmonic injection was established. According to the power conservation principle, the electromagnetic torque was analyzed under normal state and fault state, then a fault-tolerant control strategy with unchanged average torque was proposed. This method realizes full-load operation by reallocating the amplitude and phase of the phase current. To obtain a smooth electromagnetic torque under fault state, another fault-tolerant control strategy was then proposed keeping the pulsating torque at zero, which realizes no-disturbed operation. By controlling the electric currents of dq axis and zero sequence in the rotating coordinate system, the electromagnetic torque was compensated. The experimental results show that the proposed fault-tolerance control strategy can improve the running performance of five-phase PMSM under fault state.关键词
五相永磁同步电机/开路故障/数学模型/转矩脉动/容错控制Key words
Five-phase permanent magnet synchronous motor/open-circuit fault/mathematical model/torque ripple/fault-tolerant control分类
信息技术与安全科学引用本文复制引用
高宏伟,杨贵杰..五相永磁同步电机缺相运行的建模与控制[J].电工技术学报,2016,31(20):93-101,9.基金项目
国家自然科学基金资助项目（51177026）。 （）
