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研究生:利俊宏
研究生(外文):Chin-HungLi
論文名稱:以鋼軌電位評估非接地直流牽引系統軌道絕緣特性
論文名稱(外文):Insulation Assessment in a Non-grounded DC Traction System Based on Rail Potential
指導教授:楊宏澤楊宏澤引用關係
指導教授(外文):Hong-Tzer Yang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩士在職專班
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:2016
畢業學年度:104
語文別:中文
論文頁數:39
中文關鍵詞:捷運直流牽引系統雜散電流非接地系統鋼軌電位
外文關鍵詞:MRTDC traction systemstray currentnon-grounded systemsrail potential
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捷運直流牽引系統所衍生的雜散電流,在不同的接地系統有不同的防治作為。本文先闡述高雄捷運電力系統架構、變電站配置、負載規劃進而說明直流牽引動力變電站的架構、直流電壓與負載變化關係。再者雜散電流對於軌道、軌道扣件及地下金屬管線的影響。
高雄捷運直流牽引系統採用非接地系統,透過軌道電位評估軌道絕緣特性。鋼軌電位記錄電腦透過SCADA系統存取捷運各車站即時的鋼軌電位數值,藉由圖控軟體將鋼軌電位資料以圖像方式展現,依此建立鋼軌電位異常檢核機制進行查核。文末也提出相關成果案例作為討論,該成果案例展現出鋼位電位於非接地直流牽引系統之軌道絕緣特性管控上的成效。

For stray current issues in MRT DC traction systems, the prevention schemes in different grounding systems are different. The power systems in Kaohsiung MRT system are introduced first, including substation arrangement, load distribution, traction substation architecture, and voltage regulation in the traction substation. Following that, the influences of stray current on the rail fastenings and underground metal pipes are presented. Being a non-grounded DC traction system, insulation of Kaohsiung MRT system is assessed based on rail potential analysis. The station rail potential values are collected from SCADA system via rail potential recording computer in the form of statistical plots. The abnormal events on rail potential can thus be detected. Finally, case studies on rail potential of abnormal events and the effectiveness of the insulation assessment are discussed for the non-grounded DC traction system.
第一章 緒論 1
1.1 研究動機 1
1.2 研究回顧/研究貢獻 2
1.3 研究內容 3
第二章 高雄捷運電力系統架構 4
2.1 高雄捷運電力系統 4
2.2 主變電站設置 4
2.3 直流牽引用電 5
2.4 車站設施用電 7
2.5 機廠設施用電 8
2.6 直流牽引動力變電站 8
2.6.1 直流整流變壓器 8
2.6.2 直流整流器 9
2.7 直流牽引接地系統型式 11
2.7.1 直接接地系統 11
2.7.2 二極體接地系統 13
2.7.3 非接地/高電阻接地系統 15
第三章 非接地系統之軌道絕緣管控方法 18
3.1 軌道絕緣管控方法 18
3.2 軌道絕緣量測 19
3.3 雜散電流監測 21
3.4 短路裝置 23
3.5 鋼軌電位紀錄電腦 23
3.6 鋼軌電位紀錄電腦功能展現 24
3.6.1 各車站即時鋼軌電位資料 24
3.6.2 每單位時間的鋼軌電位資料 25
3.6.3 各車站鋼軌電位分布 27
3.7 鋼軌電位異常檢核機制 28
第四章 鋼軌電位管控實際案例數值結果 30
4.1 案例一:月台門與外部管線搭接 30
4.2 案例二:路線段鋼軌絕緣失效 30
4.3 案例三:主線與機廠鋼軌搭接 32
4.4 案例四:鋼軌與施工圍籬搭接 34
4.5 案例五:鋼軌與軌旁設備搭接 34
第五章 結論與未來研究方向 36
5.1 結論 36
5.2 未來研究方向 37
參考文獻 38

[1]J.G. Yu, “The effects of earthing strategies on rail potential and stray currents in DC transit railways, International Conference on Developments in Mass Transit Systems, IEE, April 1998, pp. 303-309
[2]C.H. Lee and H.M. Wang, “Effects of grounding schemes on rail potential and stray current in Taipei rail transit systems, IEE Proceedings - Electric Power Applications, 2001, 148, (2), pp. 148-154
[3]J.G. Yu and C.J. Goodman, “Modelling of railway potential rise and leakage current in DC rail transit systems, IEE Colloquium on Current Effect of DC Railways and Tramways, Digest No. 129, London, 1990
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[9]Thomas J. Barlo and Alan D. Zdunek, “Stray current corrosion in electrified rail systems, Published online at: http://iti.acns.nwu.edu/projects/ stray1_int.html, May 1998
[10]J.G. Yu and C.J. Goodman, “Stray current design parameters for DC railways, IEEE Joint Railroad Conference, Atlanta, CA, USA, 1992, pp. 19–28
[11]K.S. Bahra and R.B. Catlow, “Control of stray currents for DC traction systems, IEE International Conference on Electric Railways in a United Europe, 1995, pp. 136–142
[12]K.J. Moody and P.E., “Stray Current Characteristics of Grounded, Ungrounded, and Diode Grounded DC Transit Systems, CORROSION/94, No. 589, National Association of Corrosion Engineers, Baltimore, Maryland, March 1994.
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[15]李美蘭,「台北捷運系統淡水-新店線車行軌道之接觸電位分析」,碩士論文,2000年,P54-98
[16]M.J. Szeliga and P.E., “Stray Current Control Through Storage Yard Isolation The WMATA Experience, CORROSION/84, No. 157, National Association of Corrosion Engineers, New Orleans, Louisiana, October 1984.
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[19]W. Sidoriak and P. Deleuw, “DC Transit Rail Isolation Design, Installation and Problem Resolutions on the Baltimore Central Light Rail Line, CORROSION/93, No. 591, National Association of Corrosion Engineers, New Orleans, Louisiana, June 1993.

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