Analysis of temperature field for a surface-mounted and interior permanent magnet synchronous motor adopting magnetic-thermal coupling method


Aiming at obtaining high power density of surface-mounted and interior permanent magnet synchronous motor (SIPMSM), it is important to accurately calculate the temperature field distribution of SIPMSM, and a magnetic-thermal coupling method is proposed. The magnetic-thermal coupling mechanism is analyzed. The thermal network model and finite element model are built by this method, respectively. The effects of power frequency on iron losses and temperature fields are analyzed by the magnetic-thermal coupling finite element model under the condition of rated load, and the relationship between the load and temperature field is researched under the condition of the synchronous speed. In addition, the equivalent thermal network model is used to verify the magnetic-thermal coupling method. Then the temperatures of various nodes are obtained. The results show that there are advantages in both computational efficiency and accuracy for the proposed coupling method, which can be applied to other permanent magnet motors with complex structures.

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Divisions: College of Engineering & Physical Sciences
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: Natural Science Foundation of China (Item number: 51777060, U1361109) and Natural Science Foundation of Henan province (Item number: 162300410117) and the innovative research team plan of Henan Polytechnic University (Item number: T2015-2).
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Related URLs: http://ieeexplo ... cument/8326464/ (Publisher URL)
PURE Output Type: Article
Published Date: 2018-03-29
Accepted Date: 2017-09-05
Authors: Si, Jikai
Zhao, Suzhen
Feng, Haichao
Hu, Yihua
Cao, Wenping (ORCID Profile 0000-0002-8133-3020)



Version: Published Version

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