旋转电压对小功率无刷直流电动机运行特性的影响

Rotating Voltage Effect on the Micro Power Brushless DC Motor Behavior

建立了１８０ｏ通电、单极性驱动的二相四绕组无刷直流电动机较精确的数学模型。对一台样机的运行特性进行仿真计算，并用实验证明了模型的准确性。进而以每极具有相同磁通量为基础，对正弦波、矩形波、不同波顶宽度的梯形波旋转电压的无刷直流电动机运行特性进行了对比研究。

A more accurate mathematical model is put forward for the two-phase fourwinding brushless DC motor with 180o unipolar supplyThe behavior of a sample motor is simulated and the results are verified by experimentMoreover,the effects of rotating voltage of sinusoidal,rectangular and trapezoidal waves with different top width on the behavior of the motor are compared on the basis of same flux per pole