Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor
Abstract In this paper, an analytical model based on the subdomain method is proposed for heteropolar radial magnetic bearings (HRMBs) with a solid rotor. Due to the eddy current effects of the solid rotor in varying magnetic fields, accurate analytical models with no eddy current effects and eddy c...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Wiley
2021-09-01
|
Series: | IET Electric Power Applications |
Online Access: | https://doi.org/10.1049/elp2.12091 |
id |
doaj-be9c9e00d6664e2194c1ef3ab07b3b18 |
---|---|
record_format |
Article |
spelling |
doaj-be9c9e00d6664e2194c1ef3ab07b3b182021-08-06T00:34:16ZengWileyIET Electric Power Applications1751-86601751-86792021-09-011591232124410.1049/elp2.12091Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotorChunmin Yu0Zhiquan Deng1Lei Mei2Shangsi Chen3Cong Peng4Qiang Ding5College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Electrical Engineering and Control Science Nanjing Tech University Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaSchool of Electrical Engineering Nanjing Vocational University of Industry Technology Nanjing ChinaAbstract In this paper, an analytical model based on the subdomain method is proposed for heteropolar radial magnetic bearings (HRMBs) with a solid rotor. Due to the eddy current effects of the solid rotor in varying magnetic fields, accurate analytical models with no eddy current effects and eddy current effects are established for electromagnetic analysis. First, the HRMB is divided into two regions, including the slot region and air region, and three regions, including the slot region, air region, and rotor region, to determine whether eddy currents are considered. The static analytical model and dynamic analytical model are established separately. Furthermore, the air gap magnetic density is derived utilising vector equations and boundary conditions. The analytical model is verified by finite element analysis. Ultimately, the parameters of the HRMB are optimised, while the analytical results are compared with the prototype’s experiment results.https://doi.org/10.1049/elp2.12091 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chunmin Yu Zhiquan Deng Lei Mei Shangsi Chen Cong Peng Qiang Ding |
spellingShingle |
Chunmin Yu Zhiquan Deng Lei Mei Shangsi Chen Cong Peng Qiang Ding Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor IET Electric Power Applications |
author_facet |
Chunmin Yu Zhiquan Deng Lei Mei Shangsi Chen Cong Peng Qiang Ding |
author_sort |
Chunmin Yu |
title |
Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
title_short |
Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
title_full |
Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
title_fullStr |
Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
title_full_unstemmed |
Accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
title_sort |
accurate modelling based on a subdomain method for heteropolar radial magnetic bearing with a solid rotor |
publisher |
Wiley |
series |
IET Electric Power Applications |
issn |
1751-8660 1751-8679 |
publishDate |
2021-09-01 |
description |
Abstract In this paper, an analytical model based on the subdomain method is proposed for heteropolar radial magnetic bearings (HRMBs) with a solid rotor. Due to the eddy current effects of the solid rotor in varying magnetic fields, accurate analytical models with no eddy current effects and eddy current effects are established for electromagnetic analysis. First, the HRMB is divided into two regions, including the slot region and air region, and three regions, including the slot region, air region, and rotor region, to determine whether eddy currents are considered. The static analytical model and dynamic analytical model are established separately. Furthermore, the air gap magnetic density is derived utilising vector equations and boundary conditions. The analytical model is verified by finite element analysis. Ultimately, the parameters of the HRMB are optimised, while the analytical results are compared with the prototype’s experiment results. |
url |
https://doi.org/10.1049/elp2.12091 |
work_keys_str_mv |
AT chunminyu accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor AT zhiquandeng accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor AT leimei accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor AT shangsichen accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor AT congpeng accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor AT qiangding accuratemodellingbasedonasubdomainmethodforheteropolarradialmagneticbearingwithasolidrotor |
_version_ |
1721219700535328768 |