摘要
多相永磁同步电机因其高容错能力备受关注,在大功率和高可靠性场合具有很好的竞争力和发展前景。本文以相移30°双三相永磁同步电机为研究对象,从多相电机的控制方法入手,根据双三相电机的绕组结构特点,对其一相开路时的容错控制策略进行了较为深入的分析,采用调整剩余相电流的相位和幅值的容错方法,搭建仿真模型,验证了所提出的容错控制算法的正确性,有效地减少缺相后的转矩脉动,具有较好的动态性能,提高了驱动系统的可靠性。
Multi-phase permanent magnet synchronous motors have batter competitiveness and development in high power and high reliability working conditions with advantages of high fault-tolerant ability.According to winding structure characteristics of dual three-phase motor,the fault-tolerant control strategy of one phase open circuit based on shift 30 degree dual three-phase motor is analyzed in this paper.The simulation model is established by faulttolerant method by adjusting phase position and amplitude of remaining phase current,which confirms correctness of purposed fault-tolerant control algorithm.The results show that the purposed method has better dynamic characteristics,not only reduces the torque ripple with one phase failure,but also improves the reliability of motor drive system.
出处
《日用电器》
2018年第11期74-80,共7页
ELECTRICAL APPLIANCES
关键词
双三相永磁同步电机
矢量控制
开路故障
容错控制
dual-phase permanent magnet machine
vector control
open circuit fault
tolerant control
