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首页> 外文期刊>IEEE Transactions on Energy Conversion >Investigation of Asymmetric and Unbalanced Winding Structures for 3-Phase Permanent Magnet Synchronous Machines
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Investigation of Asymmetric and Unbalanced Winding Structures for 3-Phase Permanent Magnet Synchronous Machines

机译：三相永磁同步机的不对称和不平衡绕组结构的研究

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摘要

In this study, an investigation of winding structures is performed for 3-phase unbalanced and asymmetric winding permanent magnet (PM) machines including different slot-pole combinations. There are two different cases for unbalanced winding (UBW) structure: 1) Stator slot number of the machine is divisible by three, 2) Stator slot number of the machine is not divisible by three. Only the first case is examined in this paper. The unbalanced winding layouts are created for minimum unbalance and maximum winding factor. Total magneto motive force (MMF) distributions for nine different slot-pole combinations and their harmonic contents are presented. Variation of the amount of unbalance for different slot-pole combinations is also provided in the paper. Key issues arising from the asymmetric and unbalanced windings such as degree of asymmetric and unbalanced magnetic pull are explored. A prototype motor with 39-slots and 12-poles has been manufactured for experimental verification. A comparison between the finite element analysis (FEA) results and experimental results is presented for the prototype motor for both no-load and on-load conditions. It is shown that the asymmetric and unbalanced winding PM motors have significant potential for applications requiring smooth torque operation.
机译：在该研究中，对包括不同的槽极组合的三相不平衡和不对称绕组永磁体（PM）机器进行绕组结构的研究。有两种不同的情况用于不平衡绕组（UBW）结构：1）机器的定子槽数由三个，2）定子槽数的机器不可分割。在本文中仅检查第一种情况。为最小不平衡和最大绕组因子创建不平衡的绕组布局。介绍了九种不同插槽组合的总磁动力（MMF）分布及其谐波内容。本文还提供了不同槽杆组合的不平衡量的变化。探索了来自非对称和不平衡绕组的关键问题，例如不对称和不平衡磁性拉动程度。采用39槽和12杆的原型电机进行了实验验证。为空载电动机提供了有限元分析（FEA）结果和实验结果的比较，用于空载和负载条件。结果表明，不对称和不平衡绕组PM电动机对需要平滑扭矩操作的应用具有显着的潜力。

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