摘要
三相电压不对称对永磁同步电动机的性能影响较大。该文基于Matlab/Simulink建立了三相自起动永磁同步电动机的瞬态仿真模型,采用了复数电压不平衡因数(CVUF)的概念,对三相电压供电的三相自起动永磁同步电动机进行了仿真研究,分析了对应不同CVUF时电机的起动时间,稳态时的定子电流不平衡因数、转矩波动、转速波动、转了铜耗, 给出了仿真曲线,并得出了相应结论。
Three-phase unbalanced voltages have great effects on the performance of a line-start permanent magnet synchronous motor. In this paper, the transient model for the motor is established. Based on this model and the conception of the complex voltage unbalanced factor, the simulation of the starting process for line-start permanent magnet synchronous motor fed by unbalanced voltages is studied, and the current unbalanced factor, the steady-state torque variation, the starting time, speed variation, and the rotor copper loss for different CVUF are given out. Some relevant conclusions are drawn.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第19期152-156,共5页
Proceedings of the CSEE
关键词
永磁
同步电动机
瞬念仿真模型
复数电压小平衡因数
不对称供电
Permanent magnet
Synchronous motor
Transient model
Complex voltage unbalanced factor
Unbalanced voltage
