Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors

Due to the fact that high speed permanent magnet synchronous motors (HSPMSM) are direct drives instead of using gears, they have technical and economical advantages in many applications. In this paper, a 150 kW, 30,000 r/min HSPMSM was used as research object, for which a magnetic-fluid-thermal-stre...

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Main Authors: Yongming Xu, Ziyi Xu, Huan Wang, Wenhui Liu
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X24000431
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author Yongming Xu
Ziyi Xu
Huan Wang
Wenhui Liu
author_facet Yongming Xu
Ziyi Xu
Huan Wang
Wenhui Liu
author_sort Yongming Xu
collection DOAJ
description Due to the fact that high speed permanent magnet synchronous motors (HSPMSM) are direct drives instead of using gears, they have technical and economical advantages in many applications. In this paper, a 150 kW, 30,000 r/min HSPMSM was used as research object, for which a magnetic-fluid-thermal-stress multi-field coupling model was developed and solved. Motor losses were obtained from electromagnetic analysis and were applied as heat source. Subsequently, the temperature and fluid distribution were solved according to given heat source characteristics and cooling structure. Based on this, the rotor stress distribution influenced by the temperature load was further obtained. On the other hand, the effect of temperature change on conductor resistivity, permanent magnet remanence, cooling medium thermophysical properties, and loss characteristics, which in turn affect temperature and stress distribution, was considered. The bidirectional coupling of multi-fields was achieved by iterative calculations in the ''forward'' and ''reverse'' cycles. The results showed that the hotspot temperature increased by 14.19 % and the tangential stress in permanent magnet increased by 5.28 % compared to the unidirectional coupling. Finally, an experiment platform was built, and tests were conducted. The results showed that the temperature obtained by bidirectional coupling was closer to the experimental result.
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spelling doaj.art-1c3109e2ab4b4b8e9ed47ef40511fda92024-02-14T05:16:58ZengElsevierCase Studies in Thermal Engineering2214-157X2024-02-0154104012Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motorsYongming Xu0Ziyi Xu1Huan Wang2Wenhui Liu3School of Electrical and Information Engineering, Changzhou Institute of Technology, Changzhou, 213032, People's Republic of China; Corresponding author.School of Electrical and Information Engineering, Changzhou Institute of Technology, Changzhou, 213032, People's Republic of ChinaHarbin University of Science and Technology, Harbin, 150080, People's Republic of ChinaHarbin University of Science and Technology, Harbin, 150080, People's Republic of ChinaDue to the fact that high speed permanent magnet synchronous motors (HSPMSM) are direct drives instead of using gears, they have technical and economical advantages in many applications. In this paper, a 150 kW, 30,000 r/min HSPMSM was used as research object, for which a magnetic-fluid-thermal-stress multi-field coupling model was developed and solved. Motor losses were obtained from electromagnetic analysis and were applied as heat source. Subsequently, the temperature and fluid distribution were solved according to given heat source characteristics and cooling structure. Based on this, the rotor stress distribution influenced by the temperature load was further obtained. On the other hand, the effect of temperature change on conductor resistivity, permanent magnet remanence, cooling medium thermophysical properties, and loss characteristics, which in turn affect temperature and stress distribution, was considered. The bidirectional coupling of multi-fields was achieved by iterative calculations in the ''forward'' and ''reverse'' cycles. The results showed that the hotspot temperature increased by 14.19 % and the tangential stress in permanent magnet increased by 5.28 % compared to the unidirectional coupling. Finally, an experiment platform was built, and tests were conducted. The results showed that the temperature obtained by bidirectional coupling was closer to the experimental result.http://www.sciencedirect.com/science/article/pii/S2214157X24000431High speed permanent magnet synchronous motors (HSPMSM)Multi-field bidirectional couplingRotor stressFluid calculationTemperature prediction
spellingShingle Yongming Xu
Ziyi Xu
Huan Wang
Wenhui Liu
Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
Case Studies in Thermal Engineering
High speed permanent magnet synchronous motors (HSPMSM)
Multi-field bidirectional coupling
Rotor stress
Fluid calculation
Temperature prediction
title Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
title_full Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
title_fullStr Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
title_full_unstemmed Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
title_short Research on magnetic-fluid-thermal-stress multi-field bidirectional coupling of high speed permanent magnet synchronous motors
title_sort research on magnetic fluid thermal stress multi field bidirectional coupling of high speed permanent magnet synchronous motors
topic High speed permanent magnet synchronous motors (HSPMSM)
Multi-field bidirectional coupling
Rotor stress
Fluid calculation
Temperature prediction
url http://www.sciencedirect.com/science/article/pii/S2214157X24000431
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