PWM逆变器——磁阻同步电动机驱动系统运行稳定性的分析

Stability analysis of PWM inverter fed reluctance synchronous motor

研究了由ＰＷＭ逆变器供电的磁阻同步电动机的运行稳定性．导出了ｄｑ０坐标系中ＰＷＭ逆变器——磁阻电动机的小信号模型，以稳定度λ作为稳定性能的指标，应用Ｒｏｕｔｈ－Ｈｕｒｗｉｔｚ判据判定系统的稳定性，并分析了电机和系统参数对运行稳定性的影响，所得结论对变频磁阻电动机的设计具有参考价值．

In this paper, the operation stability of the reluctance motor fed by PWM inverter is investigated. The small signal model of PWM inverter- reluctance motor in dq0 reference frame is established, the stability is investigated using the Routh-Hurwitz criterion, then the effect of system and machine parameters on the stability is analyzed, the results obtained are useful for the design of reluctance motor supplied from variable frequency source.