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山东大学学报 (工学版) ›› 2019, Vol. 49 ›› Issue (6): 81-85.doi: 10.6040/j.issn.1672-3961.0.2019.339

• 电气工程 • 上一篇    下一篇

直接驱动低速横向磁场开关磁阻电机研究

赵振卫1(),董志刚2,李永斌3   

  1. 1. 山东大学电气工程学院，山东 济南 250061
    2. 山东电子职业技术学院科研与社会服务中心，山东 济南 250000
    3. 拓普集团有限公司，浙江 宁波 315800
  • 收稿日期:2019-07-02 出版日期:2019-12-20 发布日期:2019-12-17
  • 作者简介:赵振卫(1967—)，女，山东济南人，高级工程师，硕士，主要研究方向为电机优化设计及电机控制.E-mail:zhao_zzw@sdu.edu.cn

Study on a low-speed direct drive transverse-flux switched reluctance motor

Zhenwei ZHAO1(),Zhigang DONG2,Yongbin LI3   

  1. 1. School of Electrical Engineering, Shandong University, Jinan 250061, Shandong, China
    2. Scientific Research and Social Service Center, Shandong College of Electronic Technology, Jinan 250000, Shandong, China
    3. Tuopu Group Co., Ltd., Ningbo 315800, Zhejiang, China
  • Received:2019-07-02 Online:2019-12-20 Published:2019-12-17

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摘要：

为了提高开关磁阻电机(switched reluctance motor，SRM)的转矩密度，实现低速、大转矩输出，满足伺服和电动车等直接电气驱动系统的要求，提出一种新型横向磁场开关磁阻电机(transverse flux switched reluctance motor，TFSRM)。将横向磁场电机的原理应用于开关磁阻电机，简化电机结构复杂程度，提高电机的转矩密度。详细介绍该电机工作原理及结构特点，运用三维等效磁网络法分析样机定、转子不同相对位置时的磁场分布，计算恒电流控制时电机的矩角特性。设计基于DSP(digital signal processor)的电流闭环控制系统，并对样机进行试验。试验结果与理论分析相吻合，理论分析与设计方法的可行性和有效性得到验证。

关键词: 横向磁场, 开关磁阻电机, 转矩提升, 三维等效磁网络, 数字信号处理

Abstract:

In order to improve the torque density of switched reluctance motor (SRM), achieve low speed and large torque output, and meet the requirements of direct electrical drive systems such as servo and electric vehicle, a new type of transverse magnetic flux switch reluctance motor (TFSRM) was proposed. The principle of transverse flux motor was applied to switch reluctance motor, which simplified the complexity of the motor structure and improved the torque density of the motor. The working principle and structural characteristics were introduced in detail. The magnetic field distribution of the stator and rotor in different relative positions were analyzed by the three-dimensional equivalent magnetic network method, and the torque angle characteristics of the motor were calculated under constant current control. A closed-loop current control system based on digital signal processor was designed, and the prototype was tested. The experimental results were consistent with the theoretical analysis, which verified the feasibility and validity of the theoretical analysis and design method.

Key words: transverse-flux, switched reluctance drive, torque magnification, Three-dimensional equivalent magnetic network, DSP

中图分类号: 

  • TM352

图1

传统开关磁阻电机结构图"

图2

外转子横向磁场开关磁阻电机结构示意图 1—电枢绕组；2—内定子铁心；3—外定子铁心。"

图3

不同转子位置时的气隙磁密分布"

图4

样机矩角特性曲线"

图5

基于DSP的电流闭环控制系统框图"

图6

样机单相静态矩角特性与计算结果的比较"

图7

恒流控制下样机的机械特性曲线"

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