分数槽集中绕组(FSCW)电机磁路的特殊性,使得其交直轴磁路的饱和现象更加突出。冻结磁导率法可以精确地计算电机在饱和工况时的交直轴电感参数。利用有限元软件,将该方法应用在10极12槽FSCW样机中,并与传统电感计算结果比较；针对高频信号注入法实现电机无位置控制,目前电机的高频数学模型中使用的还是基频电感,使用冻结磁导率法求解出了电机高频电压数学方程中的高频电感,取代基频电感以提高无位置控制精度。

The particularity of magnetic circuits of fractionalslot concentrated winding motor made the saturation of d and qaxis magnetic circuits more prominent. The frozen permeability method could be used to calculate the precise inductance of the motor when considering saturation. By using the finite element software, this method was applied to the 10pole 12slot fractionalslot concentrated winding prototype, and the results of this method are compared with those calculated by the traditional method. For the sensorless control of motor realized by high frequency signal injection method, the fundamental frequency inductances were used in the high frequency mathematical model. By using the frozen permeability method, the high frequency inductances in the highfrequency voltage mathematical equation were determined, and the fundamental frequency inductances were replaced by high frequency inductances to improve the accuracy of the sensorless control algorithm.

TM 351