IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Paper
Composition of Equivalent Circuit for Induction Motors Considering Stray Load Loss and Harmonic Torques Using Electromagnetic Field Analysis
Katsumi YamazakiAkihiro SuzukiMotomichi OhtoTeruyuki Takakura
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2010 Volume 130 Issue 8 Pages 1030-1038

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Abstract

In this paper, we describe the construction of an equivalent circuit that considers harmonics and stray load loss in induction motors. First, harmonic losses in the motors are investigated by electromagnetic field analysis. Using the obtained results, several equivalent circuits that consider harmonics and stray load loss are proposed and the circuit parameters are determined. Next, the best circuit is determined from the viewpoint of practical use. Finally, the motor characteristics calculated by using the proposed circuit are compared with those of experiments. It is concluded that the accuracy of the proposed equivalent circuit is considerably higher than that of the conventional circuit, particularly at high rotational speeds.

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© 2010 by the Institute of Electrical Engineers of Japan
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