| The Third Special Part-Issue on High-Speed Railways Technology (Guest Editor: You-tong FANG) |
|
|
|
|
| 3D thermal analysis of a permanent magnet motor with cooling fans |
| Zheng Tan, Xue-guan Song, Bing Ji, Zheng Liu, Ji-en Ma, Wen-ping Cao |
| 1School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK; 2School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China; 3College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; 4Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA; 5School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast BT9 5AH, UK; 6Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA |
|
|
|
Abstract Overheating of permanent magnet (PM) machines has become a major technical challenge as it gives rise to magnet demagnetization, degradation of insulation materials, and loss of motor efficiency. This paper proposes a state-of-the-art cooling system for an axial flux permanent magnet (AFPM) machine with the focus on its structural optimization. A computational fluid dynamics (CFD) simulation with thermal consideration has been shown to be an efficient approach in the literature and is thus employed in this work. Meanwhile, a simplified numerical approach to the AFPM machine with complex configuration in 3D consisting of conduction, forced convection, and conjugate heat transfer is taken as a case study. Different simplification methods (including configuration and working conditions) and two optimized fans for forced convection cooling are designed and installed on the AFPM machine and compared to a natural convection cooling system. The results show that the proposed approach is effective for analyzing the thermal performance of a complex AFPM machine and strikes a balance between reasonable simplification, accuracy, and computational resource.
|
|
Received: 24 September 2014
Published: 04 August 2015
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
