Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor

Xu Zhiyu; Deng Zhiquan; Zhang Zhongming; Sun Quangui; Pang Gucai

doi:doi:10.11648/j.sd.20180605.25

| Peer-Reviewed

Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor

Xu Zhiyu, Deng Zhiquan, Zhang Zhongming, Sun Quangui, Pang Gucai

Published in Science Discovery (Volume 6, Issue 5)

Received: 17 October 2018 Published: 18 October 2018

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

While the rotor of a high-speed permanent magnet motor runs at high speed, it is difficult for the permanent magnet to bear the huge tensile stress which caused by centrifugal force. In addition, the rotor is also prone to vibration and even bending deformation due to resonance. Therefore, the strength and critical speed of the rotor must be analyzed and checked. In this paper, because of the slim characteristic of high speed permanent magnet rotors, the displacement and stress fields of a 150 kW, 30 000 r/min surface mounted high speed permanent magnet motor rotor are deduced based on the theory of the thick-walled cylinder. The finite element method is used to verify the correctness of the analytical calculation. Based on the deduced analytical formulas, the influences of the inner diameter of the permanent magnet and the sleeve material on the rotor stress are analyzed. At the same time, the finite element method is used to calculate the critical speed of the rotor and analysis the influences of the inner diameter of the permanent magnet and the sleeve material on the critical speed of the rotor shaft system. A basis for the design of the high speed permanent magnet motor rotor is given.

Published in	Science Discovery (Volume 6, Issue 5)
DOI	10.11648/j.sd.20180605.25
Page(s)	406-413
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

High Speed Permanent Magnet Motor, Inner Diameter of Permanent Magnet, Stress, Critical Speed

References

[1]	孙权贵,邓智泉,张忠明.基于齿槽效应的高速永磁电机转子涡流损耗解析计算[J].电工技术学报, 2018, 33(9):1994-2004。
[2]	崔刿楷,程文杰,肖玲,等.10 kW超高速永磁电机三维瞬态温度场计算[J]. 电机与控制应用, 2018(2)。
[3]	卢南方,张宇,杨立,等.高速永磁无刷电机转子模态分析与试验研究[J]. 机械设计与制造, 2018(6)。
[4]	高永军,王雷.永磁同步电机控制技术研究及应用[J].铁道机车与动车, 2018(7)。
[5]	刘威,陈进华,崔志琴,等.高速永磁电机碳纤维护套转子综合特性研究[J]. 微特电机,2017(12):1-4。
[6]	董剑宁,黄允凯,金龙,等.高速永磁电机设计与分析技术综述[J].中国电机工程学报, 2014, 34(27):4640-4653。
[7]	丁鸿昌,肖林京,张华宇,等.高速永磁电机转子护套过盈配合量计算及应力分析[J]. 机械设计与研究, 2011, 27(5):95-98。
[8]	张涛, 朱煜秋,孙晓东,等.基于有限元法的高速永磁转子强度分析[J].电机与控制学报, 2012, 16(6):63-68。
[9]	Binder A, Schneider T, Klohr M. Fixation of buried and surface-mounted magnets in high-speed permanent-magnet synchronous machines[J]. IEEE Transactions on Industry Applications, 2006, 42(4):1031-1037.
[10]	邓旺群.航空发动机柔性转子动力特性及高速动平衡试验研究[D].南京航空航天大学, 2006。
[11]	钱伟长.电机设计强度计算的理论基础[M]. 安徽科学技术出版社, 1992。
[12]	Aglen O, Andersson A. Thermal analysis of a high-speed generator[C]// Industry Applications Conference, 2003. Ias Meeting. Conference Record of the. IEEE, 2003:547-554 vol.1.
[13]	Weeber K R, Shah M R, Sivasubramaniam K, et al. Advanced permanent magnet machines for a wide range of industrial applications[C]// Power and Energy Society General Meeting. IEEE, 2010.
[14]	程文杰,耿海鹏,冯圣,等.高速永磁同步电机转子强度分析[J]. 中国电机工程学报, 2012, 32(27):87-94。
[15]	张凤阁,杜光辉,王天煜,等.高速永磁电机转子不同保护措施的强度分析[J].中国电机工程学报, 2013, 33(z1):195-202。
[16]	张超,朱建国,韩雪岩.高速表贴式永磁电机转子强度分析[J]. 中国电机工程学报, 2016, 36(17):4719-4727。
[17]	胡家奇. 采用碳纤维绑扎的磁悬浮高速永磁电机转子研究[D]. 南京航空航天大学, 2013。
[18]	田拥胜,孙岩桦,虞烈.高速永磁电机电磁轴承转子系统的动力学及实验研究[J]. 中国电机工程学报, 2012, 32(9):116-123。
[19]	王继强,王凤翔,宗鸣.高速电机磁力轴承-转子系统临界转速的计算[J]. 中国电机工程学报, 2007, 27(27):94-98。
[20]	黄梓嫄,韩邦成,周银锋.非线性接触下磁悬浮电机柔性转子系统模态分析[J].中国电机工程学报,2014, 34(15):2438-2444。

Cite This Article

Plain Text BibTeX RIS

APA Style

Xu Zhiyu, Deng Zhiquan, Zhang Zhongming, Sun Quangui, Pang Gucai. (2018). Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Science Discovery, 6(5), 406-413. https://doi.org/10.11648/j.sd.20180605.25

Copy | Download

ACS Style

Xu Zhiyu; Deng Zhiquan; Zhang Zhongming; Sun Quangui; Pang Gucai. Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Sci. Discov. 2018, 6(5), 406-413. doi: 10.11648/j.sd.20180605.25

Copy | Download

AMA Style

Xu Zhiyu, Deng Zhiquan, Zhang Zhongming, Sun Quangui, Pang Gucai. Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Sci Discov. 2018;6(5):406-413. doi: 10.11648/j.sd.20180605.25

Copy | Download

@article{10.11648/j.sd.20180605.25,
  author = {Xu Zhiyu and Deng Zhiquan and Zhang Zhongming and Sun Quangui and Pang Gucai},
  title = {Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor},
  journal = {Science Discovery},
  volume = {6},
  number = {5},
  pages = {406-413},
  doi = {10.11648/j.sd.20180605.25},
  url = {https://doi.org/10.11648/j.sd.20180605.25},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180605.25},
  abstract = {While the rotor of a high-speed permanent magnet motor runs at high speed, it is difficult for the permanent magnet to bear the huge tensile stress which caused by centrifugal force. In addition, the rotor is also prone to vibration and even bending deformation due to resonance. Therefore, the strength and critical speed of the rotor must be analyzed and checked. In this paper, because of the slim characteristic of high speed permanent magnet rotors, the displacement and stress fields of a 150 kW, 30 000 r/min surface mounted high speed permanent magnet motor rotor are deduced based on the theory of the thick-walled cylinder. The finite element method is used to verify the correctness of the analytical calculation. Based on the deduced analytical formulas, the influences of the inner diameter of the permanent magnet and the sleeve material on the rotor stress are analyzed. At the same time, the finite element method is used to calculate the critical speed of the rotor and analysis the influences of the inner diameter of the permanent magnet and the sleeve material on the critical speed of the rotor shaft system. A basis for the design of the high speed permanent magnet motor rotor is given.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor
AU  - Xu Zhiyu
AU  - Deng Zhiquan
AU  - Zhang Zhongming
AU  - Sun Quangui
AU  - Pang Gucai
Y1  - 2018/10/18
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180605.25
DO  - 10.11648/j.sd.20180605.25
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 406
EP  - 413
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180605.25
AB  - While the rotor of a high-speed permanent magnet motor runs at high speed, it is difficult for the permanent magnet to bear the huge tensile stress which caused by centrifugal force. In addition, the rotor is also prone to vibration and even bending deformation due to resonance. Therefore, the strength and critical speed of the rotor must be analyzed and checked. In this paper, because of the slim characteristic of high speed permanent magnet rotors, the displacement and stress fields of a 150 kW, 30 000 r/min surface mounted high speed permanent magnet motor rotor are deduced based on the theory of the thick-walled cylinder. The finite element method is used to verify the correctness of the analytical calculation. Based on the deduced analytical formulas, the influences of the inner diameter of the permanent magnet and the sleeve material on the rotor stress are analyzed. At the same time, the finite element method is used to calculate the critical speed of the rotor and analysis the influences of the inner diameter of the permanent magnet and the sleeve material on the critical speed of the rotor shaft system. A basis for the design of the high speed permanent magnet motor rotor is given.
VL  - 6
IS  - 5
ER  -

Copy | Download

Author Information

Xu Zhiyu

Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Deng Zhiquan

Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Zhang Zhongming

Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Sun Quangui

Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Pang Gucai

Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Xu Zhiyu, Deng Zhiquan, Zhang Zhongming, Sun Quangui, Pang Gucai. (2018). Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Science Discovery, 6(5), 406-413. https://doi.org/10.11648/j.sd.20180605.25

Copy | Download

ACS Style

Xu Zhiyu; Deng Zhiquan; Zhang Zhongming; Sun Quangui; Pang Gucai. Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Sci. Discov. 2018, 6(5), 406-413. doi: 10.11648/j.sd.20180605.25

Copy | Download

AMA Style

Xu Zhiyu, Deng Zhiquan, Zhang Zhongming, Sun Quangui, Pang Gucai. Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor. Sci Discov. 2018;6(5):406-413. doi: 10.11648/j.sd.20180605.25

Copy | Download

@article{10.11648/j.sd.20180605.25,
  author = {Xu Zhiyu and Deng Zhiquan and Zhang Zhongming and Sun Quangui and Pang Gucai},
  title = {Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor},
  journal = {Science Discovery},
  volume = {6},
  number = {5},
  pages = {406-413},
  doi = {10.11648/j.sd.20180605.25},
  url = {https://doi.org/10.11648/j.sd.20180605.25},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180605.25},
  abstract = {While the rotor of a high-speed permanent magnet motor runs at high speed, it is difficult for the permanent magnet to bear the huge tensile stress which caused by centrifugal force. In addition, the rotor is also prone to vibration and even bending deformation due to resonance. Therefore, the strength and critical speed of the rotor must be analyzed and checked. In this paper, because of the slim characteristic of high speed permanent magnet rotors, the displacement and stress fields of a 150 kW, 30 000 r/min surface mounted high speed permanent magnet motor rotor are deduced based on the theory of the thick-walled cylinder. The finite element method is used to verify the correctness of the analytical calculation. Based on the deduced analytical formulas, the influences of the inner diameter of the permanent magnet and the sleeve material on the rotor stress are analyzed. At the same time, the finite element method is used to calculate the critical speed of the rotor and analysis the influences of the inner diameter of the permanent magnet and the sleeve material on the critical speed of the rotor shaft system. A basis for the design of the high speed permanent magnet motor rotor is given.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Analysis of Influence of the Inner Diameter of the Permanent Magnet on Rotor Stress and Critical Speed for the High Speed Permanent Magnet Motor
AU  - Xu Zhiyu
AU  - Deng Zhiquan
AU  - Zhang Zhongming
AU  - Sun Quangui
AU  - Pang Gucai
Y1  - 2018/10/18
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180605.25
DO  - 10.11648/j.sd.20180605.25
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 406
EP  - 413
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180605.25
AB  - While the rotor of a high-speed permanent magnet motor runs at high speed, it is difficult for the permanent magnet to bear the huge tensile stress which caused by centrifugal force. In addition, the rotor is also prone to vibration and even bending deformation due to resonance. Therefore, the strength and critical speed of the rotor must be analyzed and checked. In this paper, because of the slim characteristic of high speed permanent magnet rotors, the displacement and stress fields of a 150 kW, 30 000 r/min surface mounted high speed permanent magnet motor rotor are deduced based on the theory of the thick-walled cylinder. The finite element method is used to verify the correctness of the analytical calculation. Based on the deduced analytical formulas, the influences of the inner diameter of the permanent magnet and the sleeve material on the rotor stress are analyzed. At the same time, the finite element method is used to calculate the critical speed of the rotor and analysis the influences of the inner diameter of the permanent magnet and the sleeve material on the critical speed of the rotor shaft system. A basis for the design of the high speed permanent magnet motor rotor is given.
VL  - 6
IS  - 5
ER  -

Copy | Download