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The subject of this paper is the harmonics asynchronous torqueses which appear due to the presence of high time harmonics in the voltage and current of wound rotor induction motor whose speed is regulated by frequency converter in the rotor circuit. Theoretical and experimental analysis was carried out in the case when the waveform of voltage, obtained from frequency converter, is rectangular.

Harmonics asynchronous torques in wound rotor induction motor with frequency converter in the rotor