整体四磁极径向电磁轴承电磁耦合分析  

Analysis of electromagnetic coupling of integrated four-pole radial magnetic bearing

作　　者：董宏林[1] 王子华[2] 魏绍义[2] 

机构地区：[1]南京理工大学计算机科学与技术学院,江苏南京210094 [2]哈尔滨工业大学控制理论研究中心,黑龙江哈尔滨150001

出　　处：《大庆石油学院学报》2006年第3期65-68,共4页Journal of Daqing Petroleum Institute

基　　金：国防科工委基础研究资助项目(K1404060325)

摘　　要：利用磁通安培定律,给出了整体式四磁极径向电磁轴承电磁网络的磁通方程组,提出了电磁耦合干扰力的概念,并导出了其计算表达式;通过具体的仿真计算,求解了电磁耦合最大干扰力.分析结果表明:如果把控制电流作为与转子位置无关的独立变量,则当控制电流和极径最大时,电磁耦合干扰力最大;径向电磁轴承不宜采用整体式结构,而应采用分体结构.The flux equations of electromagnetic network for integrated four-pole radial magnetic bearing is established by Ampere's circuital law.The concept of electromagnetic coupled interference is proposed and the corresponding formula is also given.Based on the real numerical example,the maximum of electromagnetic coupled interference is obtained.Conclusions are presented which indicate that electromagnetic coupled is most serious when radial distance and control current are maximum,the electromagnetic coupled interference is maximum;accordingly.Radial AMB with integrated structure should be adopted other than separate structure.

关 键 词：电磁轴承 磁阻 耦合 等效电路 

分 类 号：TH133.3[机械工程—机械制造及自动化]