In this letter an investigation of the harmonics of the slip energy recovery drive is presented. The analysis takes into consideration not only the rotor-side rectifier, as is customary, but also accounts for the harmonics introduced by the recovery inverter. Simple relations are provided that predict all harmonic frequencies of the drive currents and torque as a function of its supply frequency and operating slip.
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Papathanassiou et al. (2001) studied this question.
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