径向电磁轴承冷却优化研究  

Research on Cooling Optimization of Radial Electromagnetic Bearings

作　　者：盛志伟 刘平 王泽宇 王景明 周世杰 Sheng Zhiwei;Liu Ping;Wang Zeyu;Wang Jingming;Zhou Shijie(Harbin Electric Power Equipment Co.,Ltd.,Harbin 150060,China;Nuclear Energy and New Energy Technology Institute,Tsinghua University,Beijing 100084,China)

机构地区：[1]哈尔滨电气动力装备有限公司,黑龙江哈尔滨150060 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《防爆电机》2022年第4期16-20,共5页Explosion-proof Electric Machine

摘　　要：电磁轴承作为一种无接触、无磨损、无需润滑、可以实现主动控制的支撑结构,使得其在工程项目中得到广泛的应用。随着电磁轴承功率的增大,损耗发热也随之增大,但是电磁轴承内部结构紧凑,定转子间隙较小,散热较为困难,因此对电磁轴承的散热冷却设计提出了更高要求。本研究以冷却优化为目的,采用外加冷却的方式对径向电磁轴承开展了散热冷却优化,设计了三种不同的冷却方案对某工程项目所用的径向电磁轴承开展了冷却优化研究,并进行了CFD仿真计算。根据实验和仿真结果提出了最佳优化方案:采用混合冷却的方案对径向电磁轴承的发热能够实现很好的冷却效果。As a supporting structure of no contact,no abrasion,no lubrication and active control,Active Magnetic Bearing(AMB)is widely used in engineering project.With the power increase of AMB,the loss and heat increase will be occurred also.However,AMB is difficult to dissipate heat because of internal compact structure and small clearance between stator and rotor,so it has the higher requirements for the heat dissipation and cooling design.This research takes the cooling optimization of radial AMB as an aim to carry out the heat dissipation and cooling optimizations by additional cooling method.Three different cooling schemes are a-dopted to carry out cooling optimization research and CFD simulation calculation of radail AMB in a certain engineering project.The optimal scheme(hybrid cooling scheme)is proposed according to the experimental and simulation results,which can achieve a good cooling effect for the radial AMB.

关 键 词：径向电磁轴承 优化 冷却 仿真 

分 类 号：TM301.41[电气工程—电机]