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Comparative Study of the Losses in Voltage and Current Source Inverter Fed Induction Motors

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2 Author(s)
K. Venkatesan ; Department of Electrical Engineering, Concordia University, 1455 de Maisonneuve Boulevard West, Montreal, PQ, H3G 1M8, Canada. ; James F. Lindsay

The losses in an induction motor fed from six-step voltage and current source inverters are calculated and a comparison of efficiencies when supplied from these sources is given. The equivalent circuit that includes the effect of space harmonics and corrected for the skin effect in rotor bars is used for the calculation of main and stray copper losses. Stray iron losses due to magnetomotive force (MMF) and permeance harmonics, end leakage and skew leakage are also considered. Losses in the motor when supplied from these sources are also calculated using the modified equivalent circuit having stray and core loss resistors and their efficiencies are compared.

Published in:

IEEE Transactions on Industry Applications  (Volume:IA-18 ,  Issue: 3 )