Design of Bearingless Permanent Magnet Motors Using No Voltage CombinedWindings
Design of Bearingless Permanent Magnet Motors Using No Voltage CombinedWindings
复制标题
无电压组合绕组无轴承永磁电机设计
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
E. Severson
中科院分区：
文献类型：
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作者：
Jiahao Chen;Ashad Farhan;M. Johnson;E. Severson
无轴承电机具有零机械损耗和无接触运行，使其成为高速，高可靠性应用的引人注目的技术，如工业压缩机。然而，目前公布的无轴承电机的演示仅限于低功率水平（≤30 kW）。本文研究了使用“无电压”组合电机绕组来克服性能挑战，并使中等功率，高速无轴承永磁同步电机（BPMSM）的发展成为可能。开发了一个优化框架，并用于探索具有不同槽数和极数的几种设计的设计空间。结果表明，候选设计实现了> 95%的效率，同时需要< 5%的槽空间用于悬浮电流。
Bearingless motors have zero mechanical loss and no-contact operation, making them a compelling technology for high speed, high reliability applications, such as industrial compressors. However, currently published demonstrations of bearingless motors have been limited to low power levels (≤30 kW). This paper investigates the use of a “no voltage” combined motor winding to overcome performance challenges and enable the development of a medium power, high speed bearingless permanent magnet synchronous motor (BPMSM). An optimization framework is developed and used to explore the design space for several designs with different slot and pole numbers. It is shown that candidate designs achieve > 95% efficiency while requiring < 5% of the slot space for suspension current.