摘要
得益于电磁负荷之间的解耦,横向磁通电机可以通过减小极距和提高运行频率的方式来获得更高的推力密度。在低速直驱领域,横向磁通电机有着广阔的应用前景。针对横向磁通电机内部空间利用率不足的缺点,该文提出一种双交替极横向磁通直线电机结构,在其初级和次级侧均安置了永磁体,充分利用了电机内部空间,提高了与绕组交链的永磁磁通。介绍了该电机的基本结构和运行原理,并推导电机主要尺寸与电磁力之间的关系式。通过三维有限元法研究不同结构参数对电机推力密度的影响规律,在此基础上,设计并研制一台实验样机。通过对样机的三相反电动势和静推力进行测量,并与有限元仿真结果进行对比,实验数据与仿真结果之间具有较好的吻合度。
Owing to the decoupling of electric loading and magnetic loading,the transverse flux motor(TFM)can achieve higher thrust density by reducing the pole pitch and increasing the operating frequency.In the field of low-speed direct drive applications,the transverse flux motor has a broad application prospect.In view of the shortcomings of the insufficient utilization of the internal space of the TFMs,this paper proposes a dual-consequent-pole transverse flux linear machine(DCP-TFLM),which has permanent magnets on both the primary and secondary sides,makes full use of the internal space of the motor,and improves the winding flux linkage.The basic structure and operating principle of the motor are introduced,and the relationship between the main dimensions of the motor and the electromagnetic force is derived.The influence of different structural parameters on the thrust density of the motor was studied by three-dimensional finite element method,and an experimental prototype was developed.The three-phase back EMF and static thrust of the prototype were measured and compared with the simulation results.The experimental results have a good agreement with the simulation results.
作者
罗俊
寇宝泉
杨小宝
Luo Jun;Kou Baoquan;Yang Xiaobao(School of Electrical Engineering&Automation,Harbin Institute of Technology,Harbin 150001,China)
出处
《电工技术学报》
EI
CSCD
北大核心
2020年第5期991-1000,共10页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51177023)
高等学校博士学科点专项科研基金(20132302110009)资助项目
关键词
横向磁通电机
直线电机
磁场调制
电机设计
Transverse flux machine(TFM)
linear machine
field modulation effect
machine design
