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研究生： 林德銘
Lin, De-Ming
論文名稱： 線路避雷器於電力輸電線路之防雷效能分析及其應用決策評估
Performance Analysis and Strategy Evaluations of Line Arresters for Lightning Restriction on Electric Power Transmission Lines
指導教授： 黃世杰
Huang, Shyh-Jier
學位類別： 碩士
Master
系所名稱： 電機資訊學院 - 電機工程學系
Department of Electrical Engineering
論文出版年： 2010
畢業學年度： 98
語文別： 中文
論文頁數： 89
中文關鍵詞： 線路避雷器
外文關鍵詞： line arresters
相關次數： 點閱：109  下載：0 
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    • 本論文旨在探討架空輸電線路裝設線路避雷器之應用效益，同時模擬測試線路避雷器於雷擊突波之抑制效能，俾作為輸電線路裝設線路避雷器之可行性探討，進而減少線路雷擊閃絡事故與提升使用可靠度。於本論文之研究中，已整理落雷資料及建立輸電線路模型，並分別輔以不同裝設線路避雷器方案，進行評估比較各種裝設決策於雷擊閃絡率之改善效能。此外，本論文並以不同雷擊點及雷擊能量，模擬分析線路避雷器之額定容量與裝設位置，同時在考慮塔腳電阻變化情況下，分別經由系統化之模擬分析計算線路避雷器之故障率，不僅有助於線路裝設線路避雷器之最佳化決策擬定，且將兼符增進架空輸電線路防雷設計運轉品質之需。

    This thesis is aimed to investigate the lightning restriction performance of line arresters installed in overhead transmission lines, through which the results are gained as a useful reference to decrease the flashover accidents and increase the operation reliability. In the thesis, the data of lightning statistics is first collected such that the lightning model related with transmission lines can be well constructed. Then, several placement strategies of line arresters are analyzed under different lightning locations and lightning energy. Meanwhile, the computation of failure rate of line arrester under various footing resistance is also well performed, thus anticipating the optimization of line arrester placement strategy can be better consolidated while the lightning restriction quality on overhead transmission lines can be highly improved.

    中文摘要 I 英文摘要 II 誌謝 III 目錄 IV 表目錄 VII 圖目錄 VIII 符號說明 XII 第一章 緒論 1 1-1 研究背景與動機 1 1-2 文獻回顧及探討 2 1-3 研究目的與方法 3 1-4 各章內容大綱簡述 5 第二章 現行架空輸電線路之設計架構及防雷方法 6 2-1 前言 6 2-2 輸電線路參數 6 2-2-1 接地系統 6 2-2-2 輸電鐵塔 7 2-2-3 導線及架空地線 9 2-2-4 絕緣設計 12 2-2-5 線路避雷器 15 2-2-6 雷擊電流波形與落雷參數 18 2-3 輸電線路防雷方法 20 2-3-1 降低塔腳電阻 21 2-3-2 減少鐵塔屏蔽角 22 2-3-3 增設地線 23 2-3-4 採用差絕緣設計 26 2-3-5 降低鐵塔突波阻抗 27 2-3-6 裝設線路避雷器 27 2-4 本章結論 28 第三章 雷擊暫態與閃絡率分析 30 3-1 前言 30 3-2 進行波分析 30 3-3 雷擊閃絡型式 33 3-3-1 屏蔽失敗閃絡(Shielding Failure Flashover, SFF) 35 3-3-2 逆閃絡(Back Flashover, BF) 35 3-4 雷擊閃絡率分析 35 3-4-1 雷擊機率密度函數(Probability Density Function) 36 3-4-2 逆閃絡率與屏蔽失敗閃絡率 38 3-5 本章結論 39 第四章 避雷器故障率之模擬流程及計算 40 4-1 前言 40 4-2 輸電線路模型之建立及模擬流程 41 4-3 輸電線路模型建立及模擬條件設定 43 4-4 避雷器故障率之模擬流程 49 4-5 避雷器故障率計算 51 4-6 本章結論 54 第五章 模擬結果與分析 55 5-1 前言 55 5-2 輸電線路之雷擊閃絡率模擬統計分析 57 5-2-1 不同裝設方案與屏蔽角變化之閃絡率統計 60 5-2-2 不同裝設方案與塔腳電阻變化之閃絡率統計 65 5-3 線路避雷器故障率之模擬計算 69 5-3-1 避雷器裝設方案於故障雷擊電流模擬與故障率計算 70 5-3-2 避雷器額定容量於故障雷擊電流模擬與故障率計算 73 5-3-3 避雷器於塔腳電阻變化之故障雷擊電流模擬與故障率計算 77 5-4 本章結論 80 第六章 結論及未來研究方向 81 6-1 結論 81 6-2 未來研究方向 83 參考文獻 84 作者簡介 89

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