Since rotor structures of the IPMSM are different from the common motor, inductance parameters are hard to be accurately calculated by the traditional calculation method.

埋入式永磁同步电机转子磁路结构与普通同步电机有很大差别，电感参数用传统计算方法难以准确计算。

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The average inductance current can be calculated by input voltage and output voltage to use in PI regulator.

通过采样输入输出电压以获取电感的平均电流，从而代替了实际的采样电流，以进行PI调节。

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The inductance of the rectangular plan spiral coil is calculated. The calculated results are in accordance with the results calculated by approximate formula.

计算了平面矩形螺旋线圈的电感值，结果与近似公式计算得出的电感值吻合。

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