Circulating Currents in Electric Machines: Positive Impact of The End Windings Length on Losses

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Vydáno v:arXiv.org (Nov 11, 2024), p. n/a
Hlavní autor: Taha El Hajji
Další autoři: Lehikoinen, Antti, Belahcen, Anouar
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Cornell University Library, arXiv.org
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022 |a 2331-8422 
035 |a 3127416217 
045 0 |b d20241111 
100 1 |a Taha El Hajji 
245 1 |a Circulating Currents in Electric Machines: Positive Impact of The End Windings Length on Losses 
260 |b Cornell University Library, arXiv.org  |c Nov 11, 2024 
513 |a Working Paper 
520 3 |a Circulating currents occurring in windings of electric machines received rising interest recent years. Circulating currents represent unwanted currents flowing between parallel-connected conductors. This phenomenon is due to various reasons such as asymmetries in the winding and differences in electric potential between parallel-connected conductors. This effect occurs both at no-load and on-load conditions, and always lead to uneven distribution of the current between the parallel conductors, therefore leading to higher losses, as proven in the authors' previous work. Circulating currents are occurring mainly due to asymmetries and electric potential difference in the active part, meaning that long end windings are advantageous to mitigate the effect of circulating currents. Losses due to circulating currents decrease at a rate proportional to the inverse square of the end windings length. The aim of this paper is to mathematically prove this property and present a case study application in an electric machine. 
653 |a Conductors 
653 |a Coils (windings) 
653 |a Electric potential 
653 |a Parallel connected 
653 |a Circulation 
700 1 |a Lehikoinen, Antti 
700 1 |a Belahcen, Anouar 
773 0 |t arXiv.org  |g (Nov 11, 2024), p. n/a 
786 0 |d ProQuest  |t Engineering Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3127416217/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u http://arxiv.org/abs/2411.07235