期刊
ENERGIES
卷 13, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/en13123079
关键词
bidirectional coupling; FSPM machine; 2D electromagnetic field; 3D thermal field; thermal analysis
资金
- National Nature Science Foundation of China [51991380]
- State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation [ACSKL2018KT08]
The paper aimed to find an accurate and fast model to study the electromagnetic (EM) thermal (TH) filed coupling calculation for the TH analysis in the flux switching permanent magnet (FSPM) machine. It is extremely important to know the coupling mechanism between the EM field and TH field for the designers and users of the FSPM machines. Firstly, in order to study the EM properties of the silicon steel sheet with the temperature, the Epstein frame experiment was set up, where the effect of dc magnetic bias on the core loss is also considered. In order to save the computation time, the bidirectional coupling model based on 2D finite element (FE) EM field and 3D asymmetric minimum element TH field is established, and the steady state and transient TH fields are calculated, respectively. For the transient bidirectional coupling of EM field and TH field, a method based on the adaptive adjustment calculation step is adopted to improve the computing speed. The temperature rise experiment of the prototype was carried out to verify the accuracy of the proposed coupling model. The experimental results are in good agreement with the simulation results.
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