摘要
为了实现六相永磁同步电机缺两相后的矢量控制,根据定子磁动势不变的原则,分别以定子铜耗最小、最小相电流为目标,对不同中性点连接形式下的六相永磁同步电机缺两相绕组的电流进行优化求解。根据不同中性点连接形式,获得缺相后的变换矩阵,从而建立缺两相的六相永磁同步电机旋转坐标系下数学模型,并由此提出缺相后的解耦矢量控制方法。通过仿真验证了六相永磁同步电机容错控制算法的正确性,其有效降低了缺相后的转矩脉动,且具有更好的动态性能,提高了驱动系统的可靠性。
In order to realize the vector control of the six-phase permanent magnet synchronous motor with two-open-phase,according to the principle that the stator magnetic motive force was unchanged,the current of the six-phase permanent magnet synchronous motor with two-open-phase under different neutral point connecting modes was optimized concerning minimum the stator copper loss and the minimum phase current respectively.According to different neutral point connecting modes,the transformation matrix with open-phase was obtained,so that the mathematical model of the six-phase permanent magnet synchronous motor with open-phasee in the rotating coordinate system was established,and the decoupling vector control method with open-phase was proposed.Simulation has verified the correctness of the fault-tolerant control algorithm of six-phase permanent magnet synchronous motor,which effectively reduces torque ripple,has better dynamic performance and improves the reliability of the drive system.
作者
王涛
王爱元
孙健
金永星
WANG Tao;WANG Aiyuan;SUN Jian;JIN Yongxing(Shanghai Dianji University,Shanghai 201306,China)
出处
《微电机》
北大核心
2019年第8期83-89,共7页
Micromotors
关键词
六相永磁同步电机
容错控制
缺相
转矩脉动
six-phase permanent magnet synchronous motor
fault-tolerant control
open-phase
torque ripple
