上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (12): 1977-1987.doi: 10.16183/j.cnki.jsjtu.2023.143

• 新型电力系统与综合能源 • 上一篇    下一篇

泵用新型两极异步起动永磁同步电机的设计与优化

刘城1, 王晓光1(), 尹浩1, 章国光1, 熊昌2   

  1. 1.湖北工业大学 新能源及电网装备安全监测湖北省工程研究中心,武汉 430068
    2.重庆大学 机械与运载工程学院,重庆 400044
  • 收稿日期:2023-04-17 修回日期:2023-05-19 接受日期:2023-06-19 出版日期:2024-12-28 发布日期:2025-01-06
  • 通讯作者: 王晓光,副教授;E-mail:xgwang84@foxmail.com.
  • 作者简介:刘 城(1997—),硕士生,从事永磁电机设计及其控制研究.

Design and Optimization of New Two-Pole Line-Start Permanent Magnet Synchronous Motor for Pump

LIU Cheng1, WANG Xiaoguang1(), YIN Hao1, ZHANG Guoguang1, XIONG Chang2   

  1. 1. Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan 430068, China
    2. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China
  • Received:2023-04-17 Revised:2023-05-19 Accepted:2023-06-19 Online:2024-12-28 Published:2025-01-06

摘要:

为提高带泵类负载异步起动电机的牵入同步能力,提出一种转子导条非均匀分布的新型异步起动电机转子拓扑结构.通过将非均匀分布的转子导条与内置的永磁体组合,形成具有多层磁通屏障的转子结构,增大转子凸极比,提高电机的牵入同步能力.基于有限元方法对传统结构电机和新型结构电机的空载反电势、起动能力、牵入同步能力、稳态电磁转矩、退磁、应力场和温度场分布等进行综合对比分析.结果表明,与传统转子结构相比,新型转子结构有效地提高了电机的牵入同步能力及额定工况下的效率和功率因数.最后,制作样机并搭建了实验平台,验证了仿真结果和理论分析的正确性.

关键词: 异步起动永磁同步电机, 非均匀分布, 牵入同步能力, 温度场分布

Abstract:

Line-start permanent magnet synchronous motor (LSPMSM) has a great application potential in the field of water pump due to its self-starting ability, high efficiency, and high power factor. In order to improve the transient performance of the motor with pump load, a new type of asynchronous starting motor rotor topology with non-uniform distribution of rotor bar is proposed. By combining the non-uniform distribution of rotor bar with the built-in permanent magnet into a multi-layer magnetic flux barrier rotor structure, the rotor salient ratio is increased, and the pull-in synchronization ability of the motor is improved. Based on the finite element method, the no-load back EMF, starting ability, pull-in synchronization ability, steady-state electromagnetic torque, demagnetization, stress field, and temperature field distribution of the traditional structure motor and the new structure motor are comprehensively compared and analyzed. The results show that compared with the traditional rotor structure, the new rotor structure effectively improves the pull-in synchronization ability, the efficiency, and the power factor of the motor under rated operating conditions. Finally, a prototype is made and an experimental platform is built to verify the correctness of the simulation results and theoretical analysis.

Key words: line-start permanent magnet synchronous motor (LSPMSM), non-uniform distribution, pull in synchronization capability, temperature field distribution

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