Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM

Abstract Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss and high winding temperature rise of the LHDPMSM, an e...

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Main Authors: Yongda Song, Yue Zhang, Shi Jin, Zhenyao Xu, Fengge Zhang
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12351
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author Yongda Song
Yue Zhang
Shi Jin
Zhenyao Xu
Fengge Zhang
author_facet Yongda Song
Yue Zhang
Shi Jin
Zhenyao Xu
Fengge Zhang
author_sort Yongda Song
collection DOAJ
description Abstract Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss and high winding temperature rise of the LHDPMSM, an effective winding cooling enhancement technology based on winding overall potting (WOP) is presented. The manufacturing process and cooling principle of WOP is described in detail and compared with the traditional vacuum pressure impregnation (VPI). In order to solve the problem of complex modelling process and long calculation time of LHDPMSM thermal field caused by large volume and asymmetric fluid cooling structure, the lumped parameter thermal network (LPTN) considering both fluid cooling and winding potting is proposed. Then, the cooling capacity of WOP and VPI are compared by LPTN, and the influence of some major cooling system parameters on LHDPMSM temperature rise are also researched. Finally, in order to verify the correctness of the theoretical calculation results, two 450 kW LHDPMSM prototypes adopt WOP and VPI are manufactured, tested and compared. The theoretical and experimental results are highly consistent, which proves the effectiveness of WOP in winding cooling enhancement of LHDPMSM.
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spelling doaj.art-eaf23d09cd644e65b06edf4e47099f472023-11-10T13:47:41ZengWileyIET Electric Power Applications1751-86601751-86792023-11-0117111401141010.1049/elp2.12351Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSMYongda Song0Yue Zhang1Shi Jin2Zhenyao Xu3Fengge Zhang4School of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shandong University Jinan ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaAbstract Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss and high winding temperature rise of the LHDPMSM, an effective winding cooling enhancement technology based on winding overall potting (WOP) is presented. The manufacturing process and cooling principle of WOP is described in detail and compared with the traditional vacuum pressure impregnation (VPI). In order to solve the problem of complex modelling process and long calculation time of LHDPMSM thermal field caused by large volume and asymmetric fluid cooling structure, the lumped parameter thermal network (LPTN) considering both fluid cooling and winding potting is proposed. Then, the cooling capacity of WOP and VPI are compared by LPTN, and the influence of some major cooling system parameters on LHDPMSM temperature rise are also researched. Finally, in order to verify the correctness of the theoretical calculation results, two 450 kW LHDPMSM prototypes adopt WOP and VPI are manufactured, tested and compared. The theoretical and experimental results are highly consistent, which proves the effectiveness of WOP in winding cooling enhancement of LHDPMSM.https://doi.org/10.1049/elp2.12351lumped parameter networkspermanent magnet motors
spellingShingle Yongda Song
Yue Zhang
Shi Jin
Zhenyao Xu
Fengge Zhang
Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
IET Electric Power Applications
lumped parameter networks
permanent magnet motors
title Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
title_full Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
title_fullStr Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
title_full_unstemmed Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
title_short Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
title_sort investigation of winding cooling enhancement and thermal modelling of large power high torque density direct drive pmsm
topic lumped parameter networks
permanent magnet motors
url https://doi.org/10.1049/elp2.12351
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AT shijin investigationofwindingcoolingenhancementandthermalmodellingoflargepowerhightorquedensitydirectdrivepmsm
AT zhenyaoxu investigationofwindingcoolingenhancementandthermalmodellingoflargepowerhightorquedensitydirectdrivepmsm
AT fenggezhang investigationofwindingcoolingenhancementandthermalmodellingoflargepowerhightorquedensitydirectdrivepmsm