電気学会論文誌D(産業応用部門誌)
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
論文
タービン発電機における電機子巻線の転位と循環電流を考慮した温度分布の詳細解析手法
服部 憲一高橋 和彦小橋 啓司
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2024 年 144 巻 11 号 p. 773-781

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In this study, we describe a temperature calculation method with a large network solver for transposed armature windings of a turbine generator. As is well known, a significant amount of circulating current flows within strands in armature bars. Therefore, it is critical that physical transposition of the strands should be considered for temperature calculation. We developed a calculation tool that can extensively handle the circulating current as well as complicated temperature distribution of the cooling media in the generator. The calculated result indicates that temperature distribution in generators can have a wide range as opposed to detectable temperatures depending on the design.

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