一种磁悬浮直线开关磁阻电机悬浮模块设计与分析  

Design and Analysis of a Magnetic Levitation Module for MagLev Linear Switched Reluctance Machine

作　　者：郝雯娟[1] 王宇[2] HAO Wenjuan;WANG Yu(Jincheng College, Nanjing University of Aeronautics and Astronautics, Nanjing 211156,China;College of Automation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

机构地区：[1]南京航空航天大学金城学院,南京211156 [2]南京航空航天大学自动化学院,南京211106

出　　处：《微电机》2020年第12期5-9,21,共6页Micromotors

基　　金：江苏省高校自然科学研究面上项目(19KJB470006);2019年江苏省高校青蓝工程项目,国家自然科学基金项目(51977107)。

摘　　要：磁悬浮直线开关磁阻电机继承了直线开关磁阻电机的优点,结合有效的悬浮设计方案,在磁悬浮运输系统中具有一定的应用潜力。研究了磁悬浮直线开关磁阻电机的悬浮模块及其改进结构,分析磁场分布和磁路模型,在此基础上,利用有限元软件进行仿真,通过结果分析发现所提出结构具有天然解耦的结构特点,可以实现悬浮力控制和推力控制解耦以及悬浮力控制与动子前进位置解耦,通过线性调节悬浮电流即可线性控制悬浮力,使悬浮电流控制为标量控制,大大降低了悬浮控制系统的复杂性。此外,改进结构可以有效提高悬浮电流利用率,减小悬浮绕组损耗。The maglev linear switched reluctance machine(MLSRM)inherits the merits of the LSRM and has certain application potential in maglev transportation system by combining with effective suspension design.In this paper,a magnetic levitation module and its improved structure for MLSRM were studied,and the flux distribution and magnetic circuit model were analyzed.Based on this,the proposed modules were analyzed by using FEA method,it can be found that the proposed magnetic levitation modules have decoupled structure,therefore,the levitation force control and the thrust force control were decoupled,and the levitation force can be controlled linearly by adjusting the magnitude of the levitation current without the information of the mover position,that is,the levitation current control is a simple scalar control,reducing the complexity of the levitation system.In addition,the improved levitation module can effectively improved the utilization ratio of the levitation current,thus reducing the copper loss.

关 键 词：磁悬浮直线开关磁阻电机 悬浮模块 解耦 悬浮电流利用率 

分 类 号：TM352[电气工程—电机]