永磁偏置径向磁轴承在磁悬浮反作用飞轮系统中的应用  

Application of permanent-magnet bias radial magnetic bearing in magnetically suspended reaction flywheel system

作　　者：王顺[1] 杨逢瑜[1] 陈君辉[1] 王其磊[1] 娄磊[1] Feng-yu Jun-hui Qi-lei 

机构地区：[1]兰州理工大学磁性物理与磁技术研究所

出　　处：《机械设计与制造》2010年第12期68-70,共3页Machinery Design & Manufacture

摘　　要：针对现有径向磁轴承结构电励磁磁路耦合的缺陷,设计了一种新型径向永磁偏置混合磁轴承结构,介绍了这种轴承的结构特点和工作原理,并利用等效磁路法和有限元法(FEM)对该永磁偏置径向混合磁轴承进行了电磁分析,得出了磁轴承的数学模型和主要参数的设计结果。研究结果表明:该径向永磁偏置磁轴承可以有效地避免磁路耦合现象,提高磁轴承系统的控制性能。Specific to the defects of the present radial magnetic bearing of magnetic circuit coupling,the configuration of a new permanent-magnet bias radial hybrid magnetic bearing were designed,the structure feature and working principle of the bearing were introduced,by using a equivalent magnetic circuit method and a finite element method(FEM),the electromagnetism was analyzed to deduce the mathematical models of the magnetic bearing and the parameter design methods.The research results show that this magnetic bearing can avoid the phenomenon of magnetic circuit coupling,the control performance of systems is improved.

关 键 词：永磁偏置磁轴承 径向磁轴承 磁悬浮 反作用飞轮系统 radial magnetic bearing 混合磁轴承 轴承结构 磁路耦合 等效磁路法 磁轴承系统 有限元法 数学模型 设计 耦合现象 控制性能 结果 结构特点 工作原理 电磁分析 电励磁 

分 类 号：TH122[机械工程—机械设计及理论] TH16