轴向分相永磁式磁悬浮飞轮电机解耦设计与性能分析  

Decoupling Design and Analysis of an Axial Split Phase Permanent Magnet Bearingless Flywheel Machine

作　　者：朱志莹[1] 郭旋 姜永将[2] 孙玉坤[1] 程明[2] ZHU Zhiying;GUO Xuan;JIANG Yongjiang;SUN Yukun;CHENG Ming(School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,Jiangsu Province,China;School of Electrical Engineering,Southeast University,Nanjing 210096,Jiangsu Province,China)

机构地区：[1]南京工程学院电力工程学院,江苏省南京市211167 [2]东南大学电气工程学院,江苏省南京市210096

出　　处：《中国电机工程学报》2019年第24期7366-7374,共9页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51977103,51877101);中国博士后科学基金项目(2018M632201);江苏省“六大人才高峰”(GDZB-026);江苏省研究生科研与实践创新计划(SJCX18_0525)~~

摘　　要：提出一种新型轴向分相永磁式磁悬浮飞轮电机,利用轴向分相的两套悬浮绕组实现飞轮转子四自由度悬浮,并克服了磁悬浮电机研究中存在的悬浮力与转矩强耦合以及悬浮力产生死区问题。在阐述该飞轮电机基本结构及其悬浮磁路与转矩磁路解耦设计基础上,采用三维有限元分析了电机内磁场分布、电感、转矩、悬浮力等关键性能,研制了一台额定功率为3kW的实验样机,给出了电机在径向扰动和升速等工况下径向两自由度位移以及位移与转速之间的解耦性能,结果验证了所提结构和理论分析的正确性。In this paper, a novel axial split phase(ASP) permanent magnet(PM) bearingless flywheel machine(BFM) was proposed. By adopting an ASP configuration, the rotor suspension degree of freedom can be doubled and the problem of strong coupling between radial forces and torque can be solved. Firstly, the basic structure and working principle of ASP-PM-BFM were described. Then, the static characteristics of inductance, torque, suspension force decoupling performance were analyzed based on the three-dimensional(3-D) finite element analysis(FEA). Finally, a 3 kW prototype machine was built and the decoupling performance of the radial two-degree-of-freedom displacement and rotation speed under the conditions of radial disturbance and rising speed was analyzed. The results verify the validity of the proposed structure and theoretical analysis.

关 键 词：磁悬浮电机 轴向分相 永磁偏置 有限元分析 

分 类 号：TM273[一般工业技术—材料科学与工程]