Field acceleration method is a new control method for induction motor. Its electro-magnetic process can be analysed with the transient equivalent circuit.
磁场加速法是一种新型、高性能的感应电动机控制方法，其电磁过程可用暂态等值电路进行分析。
It is shown that spectral method gives a more reasonable result, especially for the calculation of velocity and acceleration field.
计算表明波谱分析法的结果比按特征值的规则波分析法的结果更为合理，特别是对流速与加速度场的分析尤为明显。
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