背靠背Ω定子横向磁通永磁直线电机推力波动抑制  

Thrust Ripple Reduction of Back-to-backWStator Transverse Flux Permanent Magnet Linear Machine

作　　者：贾周 彭思洋 贺伟 余莉 曹永娟 贾红云 JIA Zhou;PENG Siyang;HE Wei;YU Li;CAO Yongjuan;JIA Hongyun(School of Automation,Nanjing University of Information Science&Technology,Nanjing 210044,Jiangsu Province,China;Jiangsu Engineering Research Center on Meteorological Energy Using and Control(C-MEIC),Nanjing 210044,Jiangsu Province,China;Jiangsu Collaborative Innovation Center of Atmosphere Environment and Equipment Technology(CICAEET),Nanjing 210044,Jiangsu Province,China)

机构地区：[1]南京信息工程大学自动化学院,江苏省南京市210044 [2]江苏省气象能源利用与控制工程技术研究中心,江苏省南京市210044 [3]江苏省大气环境与装备技术协同创新中心,江苏省南京市210044

出　　处：《中国电机工程学报》2023年第20期8094-8101,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(61903196);南京信息工程大学人才引进基金(2015r062)。

摘　　要：基于背靠背Ω定子聚磁动子横向磁通永磁直线电机(back-to-back Ω stator transverse flux permanent magnet linear machine,BBΩ-TFPMLM)前期研究基础,探索其推力波动对运行稳定性和定位精度影响的改善方法。首先,挖掘影响电机定位力的关键参数并对其影响机理进行剖析,提出一种通过旋转力矩来测量直线力的方法。其次,基于田口法和三维有限元分析方法对气隙长度、永磁体厚度、动子齿宽和错极距离进行仿真优化,以得到最优结构参数及电机定位力、推力、反电势曲线。最后,搭建样机实验平台测试优化参数。仿真和实验结果均表明:优化后的电机定位力峰-峰值减小38.3%,推力幅值增大21.1%,反电势幅值增大5.2%,验证了推力波动抑制方法的可行性。The methods of improving the thrust force and the influence of its fluctuation on the operation stability and positioning accuracy are investigated based on the primary studied back-to-backWstator transverse flux permanent magnet linear machine(BBW-TFPMLM).First,several key parameters affecting the positioning force of the motor are excavated and the influencing mechanism is analyzed.A method of employing the rotational torque to measure the linear force is proposed.Secondly,the length of the air gap,the thickness of the permanent magnet,the width of the mover tooth and the distance of the staggered pole are simulated and optimized based on the Taguchi method and the threedimensional finite element analysis method(3D-FEM).The optimal structural parameters,and the motor positioning force,the thrust,and the back EMF curve are obtained.Finally,a prototype experimental platform is built and some experiments are conducted to test the optimized parameters.The simulation and experimental results both show that the peak-to-peak value of the positioning force of the optimized motor is reduced by 38.3%,the thrust amplitude is increased by 21.1%,and the back EMF amplitude is increased by 5.2%,which verifies the feasibility of the thrust ripple reduction method.

关 键 词：直线电机 横向磁通 有限元 推力波动抑制 田口法 

分 类 号：TM32[电气工程—电机]