降低真空环境高速永磁电机温升的设计方法

微特电机 ›› 2022, Vol. 50 ›› Issue (1): 23-26.

降低真空环境高速永磁电机温升的设计方法

蒋燕飞¹,黄涛^1,2,周晓东³,宁远涛^1,2,张延顺^1,2,陈琦^1,2

1.上海裕达实业有限公司,上海 200240;
2.上海卫星装备研究所,上海 200240;
3.上海航天技术研究院,上海 200240

出版日期:2022-01-28 发布日期:2022-02-17

Design Method for Reducing Temperature Rise of High-Speed Permanent Magnet Motor in Vacuum Environment

JIANG Yanfei¹, HUANG Tao^1,2, ZHOU Xiaodong³, NING Yuantao^1,2, ZHANG Yanshun^1,2, CHEN Qi^1,2

1.Shanghai Yuda Industrial Co., Ltd., Shanghai 200240, China;
2.Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China;
3.Shanghai Academy of Spaceflight Technology, Shanghai 200240, China

Online:2022-01-28 Published:2022-02-17

摘要/Abstract

摘要： 针对真空环境下散热条件差,分子泵电机长时间稳态运行时,电机损耗大而导致泵体外壳温升高的问题,对电机运行工况进行实测分析,并对该工况下电机温度场进行有限元分析,确定分子泵外壳温升高的主要原因是分子泵稳定工作时,铁耗太大所致。提出一种新的设计方案,在保证起动转矩兼顾效率的前提下,降低电机稳态工作时的铁耗,建立三维模型并进行温度场仿真。将定子温度实测值与仿真值进行对比,并与已有电机实测温度值进行对比,验证了该方法的有效性和准确性,为真空环境下稳态工况的高速低载永磁电机温度场优化及类似工程应用提供了参考。

关键词: 高速永磁电机, 真空, 温度场, 铁耗

Abstract: In view of the poor heat dissipation condition in vacuum environment, and the large loss of the existing molecular pump motor during long-term steady-state operation, which leads to the increase of the pump shell temperature. The operating conditions of the existing motor were measured and analyzed, and the temperature field of the motor was analyzed by finite element method. It is determined that the main reason for the increase of the shell temperature of the existing molecular pump is the large iron loss when the molecular pump works stably. For this reason, a new design was proposed to reduce the iron loss during steady-state operation, established a three-dimensional model and simulated the temperature field on the premise of ensuring the starting torque and efficiency. The effectiveness and accuracy of the proposed method were verified by comparing the measured value of stator temperature with the simulated value and the measured temperature value of existing motors. It provided a reference for the temperature field optimization of high-speed and low load permanent magnet motors under steady-state conditions in vacuum environment and similar engineering applications.

Key words: high speed permanent magnet motor, vacuum, temperature field, iron-loss

中图分类号:

TM351

蒋燕飞,黄涛,周晓东,宁远涛,张延顺,陈琦. 降低真空环境高速永磁电机温升的设计方法[J]. 微特电机, 2022, 50(1): 23-26.

JIANG Yanfei, HUANG Tao, ZHOU Xiaodong, NING Yuantao, ZHANG Yanshun, CHEN Qi. Design Method for Reducing Temperature Rise of High-Speed Permanent Magnet Motor in Vacuum Environment[J]. Small & Special Electrical Machines, 2022, 50(1): 23-26.

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