Loss calculation and thermal simulation analysis of high-speed PM synchronous generators with rotor topology

The machine under study is a high speed permanent magnet (PM) synchronous generator, which is driven by a micro gas turbine, whose rated power is 117 kW at 60 000 rpm. Magnetic field distributions in generators having either semi-closed slots or closed slots are analyzed respectively when PM is magn...

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Bibliographic Details
Published in2010 International Conference on Computer Application and System Modeling (ICCASM 2010) Vol. 14; pp. V14-612 - V14-616
Main Authors Li Weili, Wang Jing, Zhang Xiaochen, Kou Baoquan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2010
Subjects
Copper
copper screen
eddy loss
Magnetic noise
Magnetic shielding
permanent magnet
Rotors
thermal analysis
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ISBN9781424472352
1424472350
ISSN2161-9069
DOI10.1109/ICCASM.2010.5622209

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Summary:The machine under study is a high speed permanent magnet (PM) synchronous generator, which is driven by a micro gas turbine, whose rated power is 117 kW at 60 000 rpm. Magnetic field distributions in generators having either semi-closed slots or closed slots are analyzed respectively when PM is magnetized by two different familiar magnetizing methods, and eddy losses in each rotor are calculated. Then, influence of copper screen on eddy loss distribution is studied, and the relationship between thickness of copper screen and loss is discussed as well. Finally, based on loss calculation, thermal performances of generators with different rotor structures mentioned above are studied, and utility of copper screen in improving temperature rise issue is demonstrated.
ISBN:9781424472352
1424472350
ISSN:2161-9069
DOI:10.1109/ICCASM.2010.5622209