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研究生:吳致緯
研究生(外文):Chih-Wei Wu
論文名稱:高壓避雷器老化監測之研究
論文名稱(外文):A Study of Monitoring for High Voltage Arrester Aging
指導教授:陳明堂陳明堂引用關係
指導教授(外文):Ming-Tang Chen
學位類別:碩士
校院名稱:國立高雄應用科技大學
系所名稱:電機工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:56
中文關鍵詞:雷擊保護高壓避雷器老化監測
外文關鍵詞:Lightning ProtectionHigh Voltage Surge ArresterAging Monitoring
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電力系統經常遭受到超過設備所能承受的暫態過電壓,而造成設備絕緣破壞及停電等事故。為避免這類事故的發生,通常會採用高壓避雷器來作為保護設備。因此,監測避雷器運轉狀態,乃成為電力系統暫態保護的重要工作。但線上運轉中的避雷器會逐漸老化,一般維護人員往往不知道是否仍可繼續使用。為克服此難題,本文針對現有以避雷器洩漏電流量測為基礎的檢測方法,以連續三年的數據分析結果為依據,進行其性能評估,作為未來維護人員改善避雷器運轉狀況監測技術之具體參考。
An electric power system always operates under the stress of some transient overvoltages that exceed the maximum allowable insulation capability of the system components, so some events, such as insulation failures and power interruptions, may be caused as a transient overvoltage happens to the system. Since arrester is an effective device to protect the system from these events; therefore, the monitoring of an arrester operation is very important for the protection of power system from transient overvoltage damage. But system operators can not exactly know the aging condition of a on-line arrester. To overcome the problem, this thesis evaluate the performances of detection methods based on arrester leakage current measurement. The operation data of some arresters were first collected over a period from two to three years, then these data were respectively analyzed by each method to identify arrester aging condition. The analysis results can be used to improve the arrester monitoring techniques.
第一章 緒論……………………………………...………….
1.1 研究背景與動機……………………………….....
1.2 研究方法與貢獻…………………………...……..
1.3 論文內容概要……………………………...……..
第二章 過電壓之影響與防範………………………...…….
2.1 過電壓的類型……………….………………...….
2.1.1 外部過電壓……….………………….…....
2.1.2 內部過電壓……..…………………………
2.2 保護策略……………………………….…………
2.3 避雷器之工作原理及應用……………………….
第三章 避雷器運轉信號之數位式線上量測………………
3.1 避雷器洩漏電流之特性……..…………....……...
3.2洩漏電流量測………………………….………….
3.3 洩漏電流的諧波分析與計算…………..………...
3.3.1 離散傅立葉轉換.……………...…………..
3.3.2 快速傅立葉轉換.……………..……...........
3.3.3 諧波量測與應用…………….……….....…
第四章 避雷器老化監測…………………………..….…….
4.1總洩漏電流法….………………………………….
4.2電容性洩漏電流法…………….…………..……...
4.3電阻性洩漏電流法.……………………….……....
4.4 變化量綜合指標法……………………….………
4.5混合式指標法…………………………….……….
第五章 結論及未來展望…………………………….….…..
5.1 結論……………………………………….………
5.2 未來展望………………………………….………
参考文獻……………………………………………...……...
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[10]Y.Q. Wang and F.C. Lu, “ Influence of Power System's Harmonic Voltage on Leakage Current of MOA, “ Proceedings of Asia-2003 Pacific Conference on Environmental Electromagnetics (CEEM 2003), 4-7 Nov. 2003, P.P.375 – 378.
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[12]IEC 60099-4, Surge Arresters - Part 4: Metal-Oxide Surge Arresters without Gaps for a.c. Systems, 2005.
[13]K.P. Mardira, T.K. Saha, and R.A. Sutton, “ Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters, ” IEEE Transactions on Dielectrics and Electrical Insulation,Volume 12, Issue 1, Feb. 2005, P.P.50 – 59.
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