書誌事項
- タイトル別名
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- Lightning Surge Response of a Transmission Tower with Overhead Lines Analyzed by TEM-delay Model
- TEM-delay モデル ニ ヨル テットウ-ソウデンセンケイ ライ サージ オウトウ ノ ケンショウ
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<p>A back-flashover due to a lightning strike to the top of a transmission tower or its ground wires can result in the power outage. The occurrence rate and seriousness of the back-flashover should be estimated for existing or planned transmission lines for lightning risk management of power systems. This paper presents a modeling method of crossarms in a Transverse Electro-Magnetic (TEM) delay tower model, which considers a non-TEM characteristic of the tower. The voltages generated across the insulator strings due to a lightning strike to the tower top are discussed based on the analysis results by the finite-difference time-domain method, the TEM-delay model, and the multistory tower model, which has been widely used, with referencing surge experimental results reported in the past. Then back-flashovers of a 77-kV transmission system are analyzed using the proposed and conventional circuit models, and these results are discussed with referencing a measured back-flashover reported in the past. Based on the above analyses and discussions, this paper shows that the voltages across the insulator strings have been underestimated by the conventional model, and shows the applicability of the TEM-delay model to lightning surge analysis in high-voltage transmission systems.</p>
収録刊行物
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- 電気学会論文誌B(電力・エネルギー部門誌)
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電気学会論文誌B(電力・エネルギー部門誌) 141 (2), 145-153, 2021-02-01
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1391131406310913152
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- NII論文ID
- 130007979645
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- NII書誌ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 031285674
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
- KAKEN
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- 使用不可