This paper proposes a new method of sensorless vector control for induction motors, in which the motor speed is estimated by both instantaneous reactive power and variation of magnetizing current.

提出了一种异步电机无速度传感器矢量控制的新方法，用瞬时无功功率和励磁电流变化来估计电机转速。

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The paper presents a method of processing the stator current of squirrel cage induction motor with broken rotor bar. The method is based on the theory of adaptive filter.

本文根据自适应滤波的原理，推导出处理鼠笼转子异步电机定子电流的方法。

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By means of circuit topology theory and loop current method, simulation and calculation are performed on the 12-phase power winding of an induction generator with rectifier load system.

为了对异步发电机十二相功率绕组带整流负载系统进行仿真计算，采用了基于电路拓扑理论的回路电流法。

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