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A Mathematical Model of a Collector Traction Motor with Separate Consideration of Eddy Currents of the Main and Additional Poles

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Abstract

A mathematical model of a collector traction motor with independent excitation has been proposed in which eddy currents from the main and additional poles are separately taken into account. The results of computer simulations to determine the response of developed model to an abrupt change in the voltage across the anchor and when the anchor is powered by a pulse converter have been considered. The electromagnetic processes that occur in the traction motor have been examined in detail at rated and reduced current of main poles and at various speeds. The mechanism of the effect of eddy currents from additional poles on the magnetic flux of main poles of the machine, emf, and rate of rise of the anchor current has been analyzed. The factors directly affecting the degree of influence of eddy currents from additional poles on the electromagnetic processes in a traction motor have been determined. Conclusions have been drawn regarding the appropriateness of taking into account the phenomenon under consideration when simulating the operation of a traction electric drive.

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Authors and Affiliations

  1. Russian University of Transport, 127994, Moscow, Russia

    V. Yu. Evseev & A. N. Savos’kin

Authors
  1. V. Yu. Evseev
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  2. A. N. Savos’kin
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Correspondence to V. Yu. Evseev.

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Translated by M. Astrov

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Evseev, V.Y., Savos’kin, A.N. A Mathematical Model of a Collector Traction Motor with Separate Consideration of Eddy Currents of the Main and Additional Poles. Russ. Electr. Engin. 91, 557–563 (2020). https://doi.org/10.3103/S1068371220090047

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  • DOI: https://doi.org/10.3103/S1068371220090047

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