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Volume 7
Issue 2
10.3390/wevj7020195
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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Previous articles 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.
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Article

Abnormal Electromagnetic Noise of Motors depending on Fixing Methods of Permanent Magnets

by
Myunggyu Kim
1 and
Hyunsu Kim
2,*
1
Research & Development Division, Hyundai Motor Company
2
Research & Development Division, Hyundai Motor Company
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2015, 7(2), 195-200; https://doi.org/10.3390/wevj7020195
Published: 26 June 2015
Versions Notes

Abstract

Abnormal electromagnetic noise of traction motor in hybrid electric vehicle (HEV) occurred after the endurance test is experimentally investigated. Theoretical model explains that the abnormal components, which are ±1 orders of the number of slots, can be sourced from an unbalanced rotor. Experimental approach confirms that the abnormal noise is mainly from the rotor. Since there are no variations in the strength of the magnet flux, the vibration of the magnets is strongly believed as the main reason of the abnormal noise. Finally, the magnetic fixing method is changed from bond to mold, and the improvement of the noise is demonstrated.
Keywords: abnormal electromagnetic noise; hybrid electric vehicle; permanent magnet; unbalanced force; vibration abnormal electromagnetic noise; hybrid electric vehicle; permanent magnet; unbalanced force; vibration

Share and Cite

MDPI and ACS Style

Kim, M.; Kim, H. Abnormal Electromagnetic Noise of Motors depending on Fixing Methods of Permanent Magnets. World Electr. Veh. J. 2015, 7, 195-200. https://doi.org/10.3390/wevj7020195

AMA Style

Kim M, Kim H. Abnormal Electromagnetic Noise of Motors depending on Fixing Methods of Permanent Magnets. World Electric Vehicle Journal. 2015; 7(2):195-200. https://doi.org/10.3390/wevj7020195

Chicago/Turabian Style

Kim, Myunggyu, and Hyunsu Kim. 2015. "Abnormal Electromagnetic Noise of Motors depending on Fixing Methods of Permanent Magnets" World Electric Vehicle Journal 7, no. 2: 195-200. https://doi.org/10.3390/wevj7020195

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