3-D eddy current analysis of bevel edge core reactor using modeling technique of laminated steel

Norio Takahashi, Takaaki Nakau, Daisuke Miyagi, Shuichi Nogawa, Minoru Kuwata

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The eddy current is induced in silicon steel sheets of core block of power reactor due to the fringing flux, and this causes a local overheating. If a bevel edge core is used in the reactor composed of laminated core, the eddy current loss may be reduced. In order to investigate the behavior of flux and eddy current in the reactor, a modeling technique of laminated core for exact and quick practical nonlinear analysis is investigated. It is shown that the practical analysis under distorted flux waveform is possible by subdividing only the region near the surface of lamination, and the inner part is subdivided as a bulk core having anisotropic conductivity. The flux and eddy current distribution of the bevel edge core reactor is investigated using the modeling technique of laminated core. It is illustrated that the maximum eddy current loss is reduced to about 20%, and the total eddy current loss is decreased to about 50% by introducing the bevel edge core.

本文言語English
ジャーナルIEEJ Transactions on Power and Energy
128
1
DOI
出版ステータスPublished - 2008 12 1
外部発表はい

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 電子工学および電気工学

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