Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings
The supercritical CO2 Brayton cycle (S-CO2 BC) has attracted increasing attention because of the advantages of high efficiency, better compatibility, and safety, and to further improve the power density, turbine alternator compressor (TAC) integrated high-speed permanent magnet synchronous machine (...
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IEEE
2024-01-01
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| author | Liu Bin Yu Zhongjun Fu Jia |
| author_facet | Liu Bin Yu Zhongjun Fu Jia |
| author_sort | Liu Bin |
| collection | DOAJ |
| description | The supercritical CO2 Brayton cycle (S-CO2 BC) has attracted increasing attention because of the advantages of high efficiency, better compatibility, and safety, and to further improve the power density, turbine alternator compressor (TAC) integrated high-speed permanent magnet synchronous machine (HPMSM) sets are usually used in S-CO2 BC power generation devices. In terms of safe operation, it is of great significance to accurately and quickly obtain the temperature in the coupling state of the machine and magnetic bearings. Taking a 40000rpm HPMSM set used in S-CO2 BC power generation devices as an example, a new equivalent thermal model of winding is proposed firstly, and the temperature difference between the equivalent model and the exact model is less than 1.7%. On this basis, the lumped parameter thermal network (LPTN) model of the HPMSM set under the coupling state of the machine and magnetic bearings in totally enclosed environment is established. Finally, the steady and transient temperature results of the HPMSM set are obtained, which are verified by computational fluid dynamics (CFD) method. The range of absolute temperature error between LPTN model and CFD model is 0.2°C~2.2°C in steady state, and the relative temperature error is less than 4.2% in transient state. Furthermore, the computational efficiency of LPTN model is greatly improved compared with CFD model. The research of this paper is of great significance to temperature analysis and prediction under the coupling state of machine and magnetic bearings. |
| format | Article |
| id | doaj-art-1f07bd7f895246daabf9b7720b08f193 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
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| series | IEEE Access |
| spelling | doaj-art-1f07bd7f895246daabf9b7720b08f1932025-08-20T03:21:32ZengIEEEIEEE Access2169-35362024-01-0112813628137310.1109/ACCESS.2024.341032610550439Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic BearingsLiu Bin0https://orcid.org/0000-0001-5562-779XYu Zhongjun1Fu Jia2https://orcid.org/0000-0003-3017-3626National Key Laboratory of Electromagnetic Energy, Naval University of Engineering, Wuhan, ChinaNational Key Laboratory of Electromagnetic Energy, Naval University of Engineering, Wuhan, ChinaNational Key Laboratory of Electromagnetic Energy, Naval University of Engineering, Wuhan, ChinaThe supercritical CO2 Brayton cycle (S-CO2 BC) has attracted increasing attention because of the advantages of high efficiency, better compatibility, and safety, and to further improve the power density, turbine alternator compressor (TAC) integrated high-speed permanent magnet synchronous machine (HPMSM) sets are usually used in S-CO2 BC power generation devices. In terms of safe operation, it is of great significance to accurately and quickly obtain the temperature in the coupling state of the machine and magnetic bearings. Taking a 40000rpm HPMSM set used in S-CO2 BC power generation devices as an example, a new equivalent thermal model of winding is proposed firstly, and the temperature difference between the equivalent model and the exact model is less than 1.7%. On this basis, the lumped parameter thermal network (LPTN) model of the HPMSM set under the coupling state of the machine and magnetic bearings in totally enclosed environment is established. Finally, the steady and transient temperature results of the HPMSM set are obtained, which are verified by computational fluid dynamics (CFD) method. The range of absolute temperature error between LPTN model and CFD model is 0.2°C~2.2°C in steady state, and the relative temperature error is less than 4.2% in transient state. Furthermore, the computational efficiency of LPTN model is greatly improved compared with CFD model. The research of this paper is of great significance to temperature analysis and prediction under the coupling state of machine and magnetic bearings.https://ieeexplore.ieee.org/document/10550439/HPMSMmagnetic bearingsthermal analysisLPTN |
| spellingShingle | Liu Bin Yu Zhongjun Fu Jia Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings IEEE Access HPMSM magnetic bearings thermal analysis LPTN |
| title | Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings |
| title_full | Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings |
| title_fullStr | Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings |
| title_full_unstemmed | Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings |
| title_short | Thermal Modeling and Analysis of a HPMSM Coupling With Magnetic Bearings |
| title_sort | thermal modeling and analysis of a hpmsm coupling with magnetic bearings |
| topic | HPMSM magnetic bearings thermal analysis LPTN |
| url | https://ieeexplore.ieee.org/document/10550439/ |
| work_keys_str_mv | AT liubin thermalmodelingandanalysisofahpmsmcouplingwithmagneticbearings AT yuzhongjun thermalmodelingandanalysisofahpmsmcouplingwithmagneticbearings AT fujia thermalmodelingandanalysisofahpmsmcouplingwithmagneticbearings |