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转子初始位置检测一直是磁通切换电机研究的难点问题.首先对12/10极磁通切换电机的电感特性进行了深入的研究,在验证其线电感呈正弦分布且一个周期变动2次的基础上,提出了一种基于电感正弦区模型和铁心非线性磁化特性相结合的转子初始位置检测方法.在电感正弦区,采用电流斜率差值计算法来辨识电感信息,建立角度-电感关系的数学模型,然后在初步辨识出转子初始位置的基础上再向绕组施加等宽脉冲电压,并利用磁场饱和引起的电感量的变化来估计出转子的磁极极性.最后实验结果表明,所提出的方法能够可靠而有效的检测出转子初始位置,估算精度为15°.“,”Detection of the initial rotor position is always difficult in flux-switching permanent magnet (FSPM) motors. First of all, the inductance characteristics of 12/10 Magnetic pole in FSPM motor is investigated deeply. Based on the verification of the line inductance of FSPM motor being with sinusoidal distribution and changed two times periodically, then an estimation method of the initial rotor position is presented in this paper on the basis of combining the inductance model in the sinusoidal zone and the characteristics of the core magnetized nonlinearly. In the sinusoidal region, the calculation method of difference values in the line current slope is utilized for identifying the inductance. A mathematic model of the relationship between the angle and the inductance is built. Secondly, applying the identical-width pulse voltage to the winding based on the first recognition of the initial rotor position, the magnetic pole is estimated by the change of inductance values which are due to flux saturation. The experimental results show that the proposed method is effective in detecting the initial rotor position reliably, the estimation resolution of 15 degree could be achieved.