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[1]佟文明,次元平. 高速内置式永磁电机转子机械强度研究 [J].电机与控制学报,2015,19(11):45-50.[doi:10. 15938 / j. emc. 2015. 11. 007]
 TONG Wen-ming,CI Yuan-ping. Study on rotor mechanical strength of high speed interior permanent magnet motor [J].,2015,19(11):45-50.[doi:10. 15938 / j. emc. 2015. 11. 007]
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 高速内置式永磁电机转子机械强度研究


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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
19
期数:
2015年11
页码:
45-50
栏目:
出版日期:
2015-12-31

文章信息/Info

Title:
 Study on rotor mechanical strength of high speed interior permanent magnet motor

作者:
 佟文明 次元平
 ( 沈阳工业大学 国家稀土永磁电机工程技术研究中心,辽宁 沈阳 110870)
Author(s):
 TONG Wen-ming CI Yuan-ping
 ( National Engineering Research Center for Rare-earth Permanent Magnet Machines,

Shenyang University of Technology,Shenyang 110870,China)
关键词:
内置式永磁电机 高速 隔磁桥 机械强度 漏磁因数
Keywords:
 interior permanent magnet motor high speed magnetic barrier mechanical strength mag-netic leakage factor
分类号:
TM 315
DOI:
10. 15938 / j. emc. 2015. 11. 007
文献标志码:
A
摘要:
 为了研究高速内置式永磁电机转子机械强度,根据受力平衡原理,推导了极端情况下内置 式高速永磁电机转子隔磁桥最大应力的解析计算公式。利用该解析公式和有限元方法分别分析了 隔磁桥宽度对最大应力的影响规律,得到解析解和有限元计算结果最大偏差在 7. 5% 以内,证明了 解析推导的正确性。通过将永磁体沿圆周方向进行分段,增加隔磁桥的数量,将应力分散到多个隔 磁桥上,以减小应力最大值。利用有限元方法分析了永磁体不分段、分两段和分三段时转子强度和 空载漏磁因数,通过与未分段进行对比,永磁体分两段和分三段时隔磁桥最大应力分别减小
58. 5% 和 71. 2% ,而空载漏磁因数随着分段数增加而增大。

Abstract:
 In order to study the rotor mechanical strength of a high speed interior permanent magnet motor ( IPM) ,analytic calculation formula for maximum stress of magnetic barrier in extreme cases was derived based on the force balance principle. The influence law of magnetic barrier width on maximum stress was analyzed on the basis of the proposed analytical calculation formula and finite element method. The maxi-mum deviation between analytical calculation results and finite element method results was within 7. 5% , which verified the correctness of the analytical derivation. The permanent magnet was segmented along the circumference direction to increase the number of magnetic barrier,so that the maximum stress was decreased. The mechanical strength and no load magnetic leakage factor were analyzed by finite element method in the case of permanent magnet without segmentation,being divided into 2 segments and being divided into 3 segments. Compared with the unsegmented condition,the maximum stress of magnetic bar-rier can be reduced by 58. 5% for 2 segments,and 71. 2% for 3 segments. The no load magnetic leakage factor increases with the increase of magnet segments.

参考文献/References:

相似文献/References:

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 LIN Bin,SUN Dan,HE Yi-kang. High-speed operation range extension for direct torque controlledpermanent magnet synchronous motors[J].,2014,18(11):9.
[2]佟文明,次元平.磁极分段式高速轴向磁通永磁电机转子强度研究[J].电机与控制学报,2016,20(06):68.[doi:10. 15938 / j. emc. 2016. 06. 009]
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[3]刘刚,张强,毛琨.基于电压注入的高速永磁电机谐波电流抑制方法[J].电机与控制学报,2016,20(07):8.[doi:10. 15938 /j. emc. 2016. 07. 002]
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备注/Memo

备注/Memo:
 收稿日期: 2014 - 09 - 24
基金项目: 国家自然科学基金( 51307111) ; 国家科技支撑计划项目( 2013BAE08B00) ; 辽宁省教育厅科学技术研究项目( L2013049)
作者简介: 佟文明( 1984—) ,男,博士,讲师,研究方向为特种电机及其控制;
次元平( 1988—) ,男,硕士,研究方向为高速电机机械强度分析与电磁设计
更新日期/Last Update: 2016-03-13