异极性永磁偏置径向磁轴承的参数设计与实现

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摘要为了克服现有异极性永磁偏置径向磁轴承参数设计的不足, 对一种异极性永磁偏置径向磁轴承进行了研究, 分析其结构和工作原理。以其为对象提出了一种根据二维有限元仿真结果构建等效磁路, 以满足承载力所需的偏置磁场与控制磁场的磁通量为基本目标;并以软磁材料不饱和为约束条件, 结合等效磁路, 推导出永磁材料和定转子结构的参数设计方法;设计了径向悬浮力400N的原理样机, 进行了三维仿真分析和实验验证。结果表明:提出的参数设计方法合理, 利用该方法设计的异极性永磁偏置径向磁轴承悬浮性能优良, 为其他型永磁偏置磁轴承的研究奠定了基础。

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	赵旭升
	邓智泉
	汪波

关键词 ：异极性, 永磁偏置径向磁轴承, 等效磁路, 参数设计, 有限元仿真, 实验

Abstract：To overcome the defects of the present parameter design of the permanent magnet biased heterpolar radial magnetic bearing(PRMB), its precise equivalent magnetic circuit is established based on 2-D finite element simulation. A parameter design method is deduced based on the equivalent magnetic circuit aiming at bias magnetic field and control magnetic field needed by the magnetic force, under the condition of no saturation in the soft magnetic material. The experimental prototype of 400N is designed. The 3-D magnetic field simulation and experiments are carried out. The simulation and the experiment results show that the parameter design method is rational, the levitation performance of PRMB is good and this method established a basic foundation for the research of other magnetic bearings.

Key words： Heterpolar permanent magnet biased radial magnetic bearing equivalent magnetic circuit parameter design finite element simulation experiment

收稿日期: 2011-11-24 出版日期: 2014-03-20

PACS:

TH133.3

基金资助:国家自然科学基金(50877036), 航空基础科学基金(05F52040)和江苏省“六大人才高峰计划”(XNY-031)资助项目。

作者简介: 赵旭升男, 1971年生, 博士, 副教授, 研究方向为磁悬浮轴承及其控制技术。邓智泉男, 1969年生, 博士, 教授, 博士生导师, 研究方向为磁悬浮轴承、无轴承电机及高速电机。

引用本文:

赵旭升, 邓智泉, 汪波. 异极性永磁偏置径向磁轴承的参数设计与实现[J]. 电工技术学报, 2012, 27(7): 131-138. Zhao Xusheng, Deng Zhiquan, Wang Bo. Parameter Design and Realization of Permanent Magnet Biased Heterploar Radial Magnetic Bearing. Transactions of China Electrotechnical Society, 2012, 27(7): 131-138.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I7/131

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