异步轴向磁力耦合器高转速下传输特性分析及试验研究  

Transfer Characteristic Analysis and Experimental Research of Asynchronous Axial Magnetic Coupler at High Speed

作　　者：李万杰[1,2,3,4] 张国民 艾立旺[1,2,3] 刘国乐 高智远 Li Wanjie;Zhang Guomin;Ai Liwang;Liu Guole;Gao Zhiyuan(Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Applied Superconductivity,Chinese Academy of Sciences,Beijing 100190,China;Xi′an XD Electrical Research Institute Co.,Ltd.,Xi′an 710075,China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院应用超导重点实验室,北京100190 [4]西安西电电气研究院有限责任公司,陕西西安710075

出　　处：《机械传动》2018年第10期130-135,共6页Journal of Mechanical Transmission

基　　金：国家自然科学基金面上项目(51677180);中国科学院B类先导科技专项培育资助项目(XDPB01)

摘　　要：磁力耦合器利用磁场耦合作用传输转矩,将刚性连接转换为非接触的软联接方式,具有软启动、减小振动、堵转保护、高可靠性等优点,被广泛应用于工业领域。磁力耦合器还可应用于一些特殊场合,如超导飞轮储能系统,其具有省去电机定子冷却系统、真空腔完全动密封、实现长期储能的优点。由于磁力耦合器在高转速下少有应用及研究,针对超导飞轮储能高转速应用研究了异步轴向磁力耦合器的传输特性。采用传统的转速差仿真方法建立有限元模型,并计算了传输转矩、轴向力、气隙磁感应强度等性能参数,对关键部件的温升特性进行了仿真分析。试制了原理样机,搭建了高转速传输特性测试平台。在同步转速9 500 r/min下进行了试验。通过与仿真结果比较,验证了常规建模方法的有效性。对不同转速下的转矩传输特性进行试验对比,验证了异步轴向磁力耦合器高转速应用的可行性。The torque of magnetic couplers can be transferred by utilizing the magnetic field coupling,which changes the rigid connection into non-contact soft connection.It has the advantages of soft starting,vibration reduction,locked-rotor protection,high reliability,and is applied in industry.The magnetic couplers can also be used in specific conditions,such as superconducting flywheel energy storage system(SFESS),which can realize the motor placed out of vacuum chamber with no need for stator cooling system,the completely dynamic sealing of vacuum chamber,and long time energy storage.Due to rare application and research in the condition of high speed for magnetic couplers,the transfer characteristics at high speed of asynchronous axial magnetic coupler is studied based on the application of SFESS.The finite element model is built by using the general simulation method based on slip speed,the performance parameters of transferred torque,axial force,and magnetic flux density in the air-gap are calculated,and the temperature rise characteristic of critical components is analyzed.The prototype is manufactured,and the test platform of transfer characteristics at high speed is established.The experiments are conducted at the synchronous speed 9 500 r/min and the conventional modeling method is validated by comparing the experimental results with simulated results.Also the torque transfer characteristic at various speeds is compared.The feasibility of asynchronous axial magnetic coupler for high speed application is validated.

关 键 词：异步轴向磁力耦合器 有限元 传输特性 温升特性 

分 类 号：TH139[机械工程—机械制造及自动化]