E型径向电磁轴承的参数设计及特性分析  

Parameters design and characteristics analysis of E-core radial magnetic bearings

作　　者：占智军[1] 祝长生[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2013年第3期267-272,共6页Journal of Mechanical & Electrical Engineering

摘　　要：针对在特定的设计要求下传统C型径向电磁轴承无法达到设计目的等问题,提出了一种新型的E型径向电磁轴承。推导出了电磁力的理论表达式,并验证了该表达式的精确性,在有限元软件ANSYS的基础上对两种类型电磁轴承的磁路、气隙磁密、定子结构及转子损耗等特性进行了详细的对比分析。研究结果表明:E型径向电磁轴承在特定的设计要求下,其性能要优于传统C型径向电磁轴承。Aiming at the problem that traditional C-type radial magnetic bearing can＇t meet the design objectives under some certain design requirements, the new E-type radial magnetic bearing was proposed. The expression of the electromagnetic force was deduced and the accuracy was verified. The comparison of magnetic circuit, air gap flux density, stator structure and rotor loss of this two kinds magnetic bearings under the finite element software named ANSYS was elaborated in detail. The result shows that E-core radial magnetic bearing is superior to the traditional C-core radial magnetic bearing under some certain design requirements.

关 键 词：E型径向轴承 C型电磁轴承 电磁力 磁路 气隙磁密 定子结构 转子损耗 

分 类 号：TH133.3[机械工程—机械制造及自动化] TH122