Suzhou Electric Appliance Research Institute
期刊號(hào)： CN32-1800/TM| ISSN1007-3175

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基于全并聯(lián)AT供電方式的T-F短路故障測(cè)距及仿真研究

來(lái)源：電工電氣發(fā)布時(shí)間：2023-02-07 09:07 瀏覽次數(shù)：346

基于全并聯(lián)AT供電方式的T-F短路故障測(cè)距及仿真研究

柳敬
(中交機(jī)電工程局有限公司，湖北 武漢 430061)
 
    摘 要：全并聯(lián)電壓互感器 (AT) 牽引供電普遍應(yīng)用于我國(guó)的高速鐵路牽引網(wǎng)中，當(dāng)供電系統(tǒng)發(fā)生各種短路故障時(shí)，不迅速切除故障和盡快繼續(xù)穩(wěn)定供電，可能會(huì)影響鐵路系統(tǒng)的正常運(yùn)行甚至發(fā)生很?chē)?yán)重的安全事故。介紹了高速鐵路最常用的牽引供電方式——全并聯(lián) AT 供電，在此基礎(chǔ)上對(duì)牽引網(wǎng)發(fā)生 T-F 短路故障進(jìn)行了電氣計(jì)算和理論分析，并提出了精確度高、不受外部因素影響的“橫聯(lián)線電流比”故障測(cè)距原理；根據(jù)實(shí)際運(yùn)行線路，設(shè)置 AT 供電牽引網(wǎng)的參數(shù)，并在 MATLAB 軟件中建立仿真模型，對(duì)提出的短路故障測(cè)距原理進(jìn)行仿真驗(yàn)證分析，得出故障測(cè)距仿真的正確結(jié)果，證明了理論分析的正確性。
    關(guān)鍵詞： AT 牽引供電；T-F 短路；故障測(cè)距；電氣化鐵路
    中圖分類(lèi)號(hào)：TM922.3     文獻(xiàn)標(biāo)識(shí)碼：A     文章編號(hào)：1007-3175(2023)01-0028-06
 
T-F Short-Circuit Fault Location and Simulation Research
Based on All-Parallel AT Power Supply Mode
 
LIU Jing
（CCCC Electromechanical Engineering Co., Ltd, Wuhan 430061, China）
 
    Abstract: AT traction power supply has been widely used in high-speed railway traction network. When short-circuit faults occur in the power supply system, if the faults are not removed and the power supply does not continue in a stable way as soon as possible, the normal operation of railway system could be affected and serious safety accidents could happen. In this paper, the traction power supply mode commonly used in high-speed railway-all-parallel AT power supply is introduced. The electrical calculation and theoretical analysis of T-F short-circuit faults happening in the traction network are carried out, and the principle of fault location based on “the current ratio of paralleling lines” is put forward, which is highly accurate and not affected by external factors. Then, according to the actual operating line, the author sets up parameters of the power supply traction network and establishes the simulation model in MATLAB. After making simulation analysis of the principle of short-circuit fault location, the simulated right results are obtained which verifies the correctness of the above theoretical analysis.
    Key words: AT traction power supply; T-F short-circuit; fault location; electrified railway
 
參考文獻(xiàn)
[1] 李群湛，連級(jí)三，高仕斌. 高速鐵路電氣化工程[M].成都：西南交通大學(xué)出版社，2006.
[2] 李向國(guó)，黃守剛. 高速鐵路技術(shù)[M] .3 版. 北京：中國(guó)鐵道出版社，2015.
[3] 劉友梅. 鐵路高速與可持續(xù)發(fā)展[J] . 電力機(jī)車(chē)與城軌車(chē)輛，2004，27(5)：1-4.
[4] 繆耀珊. 上下行 AT 牽引網(wǎng)在 ATP 實(shí)行并聯(lián)的電能節(jié)約[J]. 電氣化鐵道，2004(6)：1-3.
[5] 高仕斌，王偉，陳小川，等. AT 供電牽引網(wǎng)新型微機(jī)故障測(cè)距原理與應(yīng)用[J] . 鐵道學(xué)報(bào)，1993，15(4)：19-27.
[6] 錢(qián)仲侯. 高速鐵路概論[M] .3 版. 北京：中國(guó)鐵道出版社，2006.
[7] 李群湛，賀建閩. 牽引供電系統(tǒng)分析[M] . 成都：西南交通大學(xué)出版社，2010.
[8] COURTOIS C.Why the 2×25 kV alternative?(autotransformer traction supply)[C]//IEE Colloquium on 50 kV Autotransformer Traction Supply Systems-the French Experience(Part4)，1993.
[9] 曹建猷. 電氣化鐵道供電系統(tǒng)[M] . 北京：中國(guó)鐵道出版社，1981.
[10] ROUSSEL H.Power supply for the Atlantic TGV high speed line[C]//International Conference on Main Line Railway Electrification，1989.
[11] MENUET J P.The autotransformer and other equipment(for railway power supply)[C]//IEE Colloquium on 50 kV Autotransformer Traction Supply Systems-the French Experience(Part3)，1993.
[12] COURTOIS C.Earthing,protection,miscellaneous(of railway power systems)[C]//IEE Colloquium on 50 kV Autotransformer Traction Supply Systems-the French Experience(Part4)，1993.
[13] 崔校玉. 客運(yùn)專(zhuān)線牽引變電所接線方式及接觸網(wǎng)故障判定方法[J]. 鐵道標(biāo)準(zhǔn)設(shè)計(jì)，2005(5)：78-79.
[14] 李群湛. 電氣化鐵道并聯(lián)綜合補(bǔ)償及其應(yīng)用[M] .北京：中國(guó)鐵道出版社，1994.