Eddy current loss calculation and thermal analysis of high-speed motor winding in magnetically suspended control moment gyroscope

Bang-cheng HAN; Song PENG; Zan HE; Xu LIU; Xu ZHANG

doi:10.3788/OPE.20202801.0130

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Eddy current loss calculation and thermal analysis of high-speed motor winding in magnetically suspended control moment gyroscope

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Eddy current loss calculation and thermal analysis of high-speed motor winding in magnetically suspended control moment gyroscope
- Optics and Precision Engineering Vol. 28, Issue 1, Pages: 130-140(2020)
- 作者机构：
  
  1.北京航空航天大学惯性技术重点实验室, 北京 100191
  2.北京航空航天大学新型惯性仪表与导航系统技术国防重点学科实验室, 北京 100191
  3.北京市高速磁悬浮电机技术及应用工程技术研究中心, 北京 100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20202801.0130
  CLC： TP394.1; TH691.9
- Received：05 June 2019，
  
  Accepted：19 July 2019，
  
  Published：15 January 2020
- 稿件说明：
移动端阅览
Bang-cheng HAN, Song PENG, Zan HE, et al. Eddy current loss calculation and thermal analysis of high-speed motor winding in magnetically suspended control moment gyroscope[J]. Optics and precision engineering, 2020, 28(1): 130-140.
DOI：

Bang-cheng HAN, Song PENG, Zan HE, et al. Eddy current loss calculation and thermal analysis of high-speed motor winding in magnetically suspended control moment gyroscope[J]. Optics and precision engineering, 2020, 28(1): 130-140. DOI： 10.3788/OPE.20202801.0130.

摘要

摘要：为了更准确地预测磁悬浮控制力矩陀螺中高速电机工作时的温升，需要计算电机绕组涡流损耗和对陀螺进行热分析。本文以最大角动量200 N·m·s，额定转速12 000 r/min的磁悬浮控制力矩陀螺为研究对象，首先分析了电机绕组涡流产生原理，采用了一种解析法和有限元法结合的方法，推导并计算了高速电机绕组涡流损耗。然后，建立了陀螺三维有限元模型，在已知陀螺各部件损耗的基础上进行了热分析，得到了温度仿真分布。最后，设计了陀螺样机温升实验进行验证。仿真分析得知高速电机定子温度最高，定子绕组温度为40.3 ℃。温升实验测得电机定子温度为41.6 ℃，与理论值误差为3.1%。这相比未考虑绕组涡流损耗时的热分析，精度提高了3.7%。考虑了绕组涡流损耗的热分析预测温升更加准确，这对于优化磁悬浮控制力矩陀螺的热设计有重要意义。

Abstract

In order to predict the temperature rise of the high speed motor in a Magnetically Suspended Control Moment Gyroscope(MSCMG) more accurately

it is necessary to calculate the eddy current loss of the motor winding and conduct thermal analysis of the MSCMG. In this paper

the maximum angular momentum of 200 N·m·s

rated speed of 12 000 r/min MSCMG was taken as the research object. Firstly

the principle of eddy current generation was analyzed. By combining analytical method and finite element method

the eddy current loss of high-speed motor winding was deduced and calculated. Then

a three-dimensional finite element model of the MSCMG was established

and the temperature distribution was obtained by thermal analysis on the basis of the known losses. Finally

a prototype temperature rise experiment was designed for verification. The simulation results show that the stator temperature is the highest and the stator winding temperature is 40.3 ℃. The motor stator temperature measured by the temperature rise experiment is 41.6 ℃

and the error is 3.1% compared with the theoretical value. Compared with the thermal analysis without considering eddy current loss

the accuracy is improved by 3.7%. It is more accurate to predict temperature rise by considering eddy current loss in thermal analysis. The work in this paper is of great significance to optimize the thermal design of MSCMG.

关键词

Keywords

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