Transactions of China Electrotechnical Society  2018, Vol. 33 Issue (zk2): 331-337    DOI: 10.19595/j.cnki.1000-6753.tces.L80238
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Three-Dimensional Electromagnetic Analysis and Loss Calculation of Multiphase Induction Motors
Zhang Wen, Zheng Xiaoqin, Wu Xinzhen
School of Electrical Engineering Qingdao University Qingdao 266071 China

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Abstract  Electromagnetic analysis plays an important role in motor design. Especially, loss calculation during rated operation is the precondition of temperature field calculation of motor. It is also the key to confirm the motor design program. In this paper, a twelve-phase induction motor with skewed slot is presented. Through establishing the motor’s three-dimensional field-circuit coupled nonlinear finite element computation model based on T, ψ -ψ method, the magnetic field and loss are investigated. The electromagnetic characteristics of motor under rated operating conditions is obtained. Then the distribution of the magnetic density in key position is analyzed. The results show that tooth harmonics are significantly suppressed by skewed slot. The motor loss calculated by finite element method is compared by the experimental result, which verified the validity of three-dimensional finite element method.
Key wordsMultiphase induction motor      loss calculation      finite element simulation      skewed slot      radial ventilation ditch     
Received: 29 June 2018      Published: 15 February 2019
PACS: TM343  
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Zhang Wen
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Zhang Wen,Zheng Xiaoqin,Wu Xinzhen. Three-Dimensional Electromagnetic Analysis and Loss Calculation of Multiphase Induction Motors[J]. Transactions of China Electrotechnical Society, 2018, 33(zk2): 331-337.
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