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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Robust Control Method of Induction Machine against Temperature Variation

Hyundai Mobis, Yongin City, South Korea
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Author to whom correspondence should be addressed.
World Electr. Veh. J. 2015, 7(2), 220-225; https://doi.org/10.3390/wevj7020220
Published: 26 June 2015
PDF [937 KB, uploaded 18 May 2018]

Abstract

This paper proposes a control method robust against the rotor temperature variation for the induction machine used in the xEV traction application. The rotor resistance (or time constant) of the induction machine varies with the rotor temperature so that its torque control performance will be degraded if this variation is not properly compensated. In this paper, firstly a direct vector control method, which is based on the rotor flux estimator using the current model in the synchronous reference frame, is adopted in order to control the DQ-axis rotor fluxes independently. Secondly, the rotor time constant variation is compensated utilizing the flux estimation difference between the voltage and current models. This method has no transition region which is inevitable in the conventional method that uses the current model in the low speed region and the voltage model in the high speed range for estimating the rotor flux. The robustness to the temperature change of the proposed method is validated through the experiment in the motoring and regeneration modes.
Keywords: induction machine; rotor resistance; rotor flux estimator; rotor temperature induction machine; rotor resistance; rotor flux estimator; rotor temperature
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Kim, S.M.; Kim, H.S.; Kwon, T. Robust Control Method of Induction Machine against Temperature Variation. World Electr. Veh. J. 2015, 7, 220-225.

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