中国电机工程学报2024，Vol.44Issue(13)：5308-5318,中插24,12.DOI:10.13334/j.0258-8013.pcsee.230553
基于谐波注入分段供电永磁直线同步电机变流器开路推力波动抑制
Suppression of Force Fluctuations in Segmented PMLSM Using Harmonic Injection During Phase Open of the Inverter
摘要
Abstract
This paper proposes a method to suppression of force fluctuation caused by single-phase open circuit faults of the inverter for a long primary segmented dual three-phase permanent magnet linear synchronous machine(PMLSM).First,the voltage equation of the segmented dual three-phase PMLSM unit machine based on the mover position in the unit machine is derived,and the force expressions of each unit machine and the total force are obtained.after that,based on the principle that the fundamental magnetic linkage of the unit machine in the fully coupled state unchanged before and after single-phase open circuit of the inverter,a reduced-order coordinate transformation matrix is constructed to obtain the voltage and force expression of the machine.To eliminate the 4th and 6th harmonics of the force fluctuation for segmented dual three-phase PMLSM caused by the fault and the coupling coefficient change,a method of harmonics current injection is proposed.Multiple inverter-coordinated control of multiple unit machines is implemented to reduce the force fluctuation after the one-phase open fault,and the maximum total force of the linear machine is optimized without affecting the force fluctuation.The method's effectiveness is demonstrated through simulations and experiments.关键词
永磁直线同步电机/分段供电/多变流器/单相开路/推力波动Key words
permanent magnet linear synchronous machine/segmented powered/multi-inverters/single-phase open circuit/force fluctuation分类
信息技术与安全科学引用本文复制引用
刘进海,史黎明,郭科宇,朱海滨,周世炯,张明远..基于谐波注入分段供电永磁直线同步电机变流器开路推力波动抑制[J].中国电机工程学报,2024,44(13):5308-5318,中插24,12.基金项目
中国科学院电工研究所科研基金(2021E139320101). The Institute of Electrical Engineering,CAS(E139320101). （2021E139320101）
