Performance Analysis of Nested-loop Secondary Linear Doubly-fed Machine Considering End Effects

Nested-loop secondary linear doubly-fed machine (NLS-LDFM) is a novel linear machine evolved from rotary brushless doubly-fed induction machine, which has a good application prospect in linear metro. In order to analyze the performance of NLS-LDFM, the mechanism and action rules of end effects are i...

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Bibliographic Details
Published inCES transactions on electrical machines and systems (Online Vol. 6; no. 3; pp. 298 - 305
Main Authors Yaping Zhang, Jian Ge, Wei Xu, Weiye Li, Yinglu Luo, Shihu Su, Yunfeng He
Format Journal Article
LanguageEnglish
Published China Electrotechnical Society 01.09.2022
Subjects
end effect
finite element algorithm (fea)
linear doubly-fed machine (ldfm)
parameter analysis
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Summary:Nested-loop secondary linear doubly-fed machine (NLS-LDFM) is a novel linear machine evolved from rotary brushless doubly-fed induction machine, which has a good application prospect in linear metro. In order to analyze the performance of NLS-LDFM, the mechanism and action rules of end effects are investigated in this paper. Firstly, the mechanism of static and dynamic end effects is analyzed in aspect of direct coupling, winding asymmetry and transient secondary current. Furthermore, based on the winding theory for short primary linear machines, the machine parameters are established qualitatively considering pulsating magnetic field of NLS-LDFM. Finally, the NLS-LDFM performance analysis is supplemented by the finite element algorithm (FEA) simulation and experiments under different operating conditions.
ISSN:2096-3564
2837-0325
DOI:10.30941/CESTEMS.2022.00040