开关磁阻电机稳态特性的等效磁网络模型分析方法Ⅱ.系统仿真

The Equival ent Magnetic Circuit Analysis Model of the Steady State Characteristics for the Switched Reluctance Motor Part Ⅱ System Dynamic Performance Prediction

根据上文所建立的数学模型，结合系统的驱动模式，对电机在角度位置控制方式下的稳态运行特性进行了仿真分析。首次研究了开关磁阻电机中系统磁场储能的变化对电机动态转矩的影响，发现稳态运行时开关磁阻电机中电磁转矩的脉动主要不是由电机磁场储能的变化引起的，而是由输入电机的电磁功率的脉动引起的。本文计算结果与实验结果非常接近，证明所建立的模型是正确的。

With the mathematical model proposed in Part Ⅰ, the steady state characteristics of the SRM is simulated ,for the angle-place-control model. The influence on the instant torque, which is caused by the change of the stored energy of the mag- netic field , is discussed for the first time. Simulated results proves that the influence from the change of the stored energy is small ,and the torque pulsation is mainly caused by the fluc- tuation of the instant input electrical powcr.The good agree- ment between the simulated and measured values proves that the proposed model is correct.