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

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基于比率差動(dòng)的導(dǎo)引線縱差保護(hù)裝置替代方案

來(lái)源:電工電氣發(fā)布時(shí)間:2021-09-18 12:18 瀏覽次數(shù):586

基于比率差動(dòng)的導(dǎo)引線縱差保護(hù)裝置替代方案

丁力,江長(zhǎng)青,蔡菠,周勇,徐舒
(南京南瑞繼保電氣有限公司,江蘇 南京 211102)
 
    摘 要:導(dǎo)引線縱差保護(hù)裝置的陸續(xù)停產(chǎn)、備品備件的不足給城市供電帶來(lái)一定的安全隱患。在保留原導(dǎo)引線傳輸通道的基礎(chǔ)上,提出了一種基于比率差動(dòng)的導(dǎo)引線縱差保護(hù)裝置替代方案。分析了導(dǎo)引線保護(hù)目前存在的問(wèn)題以及光纖縱差保護(hù)的特點(diǎn);通過(guò)光纖縱差保護(hù)裝置和導(dǎo)引線調(diào)制解調(diào)器相互配合,利用模擬調(diào)制解調(diào)技術(shù)實(shí)現(xiàn)數(shù)據(jù)在導(dǎo)引線上的遠(yuǎn)距離傳輸,然后借助乒乓法和拉格朗日插值法實(shí)現(xiàn)數(shù)據(jù)同步;闡述了各裝置特點(diǎn)并對(duì)關(guān)鍵問(wèn)題進(jìn)行梳理;通過(guò)搭建測(cè)試平臺(tái)驗(yàn)證數(shù)據(jù)通信可靠性并測(cè)試比率差動(dòng)保護(hù)動(dòng)作時(shí)間,實(shí)驗(yàn)結(jié)果表明:裝置之間通信零丟幀,鏈路故障定位準(zhǔn)確,比率差動(dòng)保護(hù)動(dòng)作時(shí)間滿足線路保護(hù)要求。
    關(guān)鍵詞:導(dǎo)引線;光纖縱差保護(hù);調(diào)制解調(diào)器;同步;比率差動(dòng)
    中圖分類(lèi)號(hào):TM773     文獻(xiàn)標(biāo)識(shí)碼:B     文章編號(hào):1007-3175(2021)09-0023-05
 
An Alternative Scheme of Guide Line Longitudinal Differential Protection
Device Based on Ratio Differential Protection
 
DING Li, JIANG Chang-qing, CAI Bo, ZHOU Yong, XU Shu
(Nanjing Nari-Relays Electric Co., Ltd, Nanjing 211102, China)
 
    Abstract: The shortage of guide line longitudinal differential protection devices caused by discontinuing is threatening the power supply of cities. Keeping the original guide line transmission channel remained, an alternative scheme, based on the ratio difference theory, for the guide line longitudinal differential protection device is proposed. Firstly, the existing problems of guide line protection and the characteristics of optical fiber longitudinal differential protection are analyzed. Secondly, the optical fiber protection and guide line modem are cooperated to realize the long-distance transmission of data on the guide line by the utilizing of analog modulation and demodulation technology, and furthermore,the data is synchronized by adopting ping-pong procedure and Lagrange interpolation method. Thirdly, the characteristics of these devices and their key points are elaborated. Finally, a simulation test verified that, there is no frame loss of communication between devices,and the link fault location is accurate, and the action time of ratio differential protection meets the requirements.
    Key words: guide line; optical fibre differential protection; modem; synchronization; ratio differential
 
參考文獻(xiàn)
[1] 宋述勇,張永春,張悅,等. 光纖保護(hù)通信淺析[J].山西電力,2007(3) :46-48.
[2] 王芊,劉國(guó)偉. 光纖差動(dòng)保護(hù)的導(dǎo)引線接口裝置[J]. 電力系統(tǒng)保護(hù)與控制,2009,37(12) :86-88.
[3] 安玉紅,苗國(guó)英,常輝. 輸電線路縱聯(lián)保護(hù)方式比較分析[J]. 供用電,2004,21(5) :26-28.
[4] 莊紅山,張路,南東亮,等. 縱聯(lián)保護(hù)對(duì)光纖通道適應(yīng)性的研究[J]. 電工電氣,2019(10) :20-24.
[5] 張福智,楊志偉. 導(dǎo)引線方向縱聯(lián)保護(hù)在企業(yè)自備電網(wǎng)中的應(yīng)用[J]. 科技信息,2008(26) :305.
[6] 鄔競(jìng). 縱聯(lián)保護(hù)方式比較分析[J] . 湖南電力,2003,23(1) :58-61.
[7] 孫剛. 導(dǎo)引線縱差保護(hù)拒動(dòng)解析[J] . 電工技術(shù),2003(8) :15-16.
[8] 雷宇. 光纖縱聯(lián)距離保護(hù)收發(fā)信回路異常分析與整改[J]. 電工技術(shù),2018(22) :65-66.
[9] 張彥博,樊肖良. 線路縱聯(lián)保護(hù)通道的維護(hù)[J] .電世界,2015,56(7) :26-29.
[10] 趙本水,張瑋,李磊. 一種提高縱聯(lián)保護(hù)通道可靠性的技術(shù)方案[J] . 齊魯工業(yè)大學(xué)學(xué)報(bào),2017,31(4) :34-38.
[11] 陳曉東. 電磁場(chǎng)感應(yīng)和地電位升高對(duì)導(dǎo)引線保護(hù)的影響[J]. 太原理工大學(xué)學(xué)報(bào),2000,31(1) :56-59.
[12] 毛慶漢. 一起導(dǎo)引線縱差保護(hù)拒動(dòng)事故的分析和處理[J]. 電工技術(shù)雜志,2002(4) :49-51.
[13] 王勇,田魏,蘆青海,等. 一起感應(yīng)電壓引發(fā)的人身傷害事故分析[J]. 電世界,2019,60(9) :19-20.
[14] 黃景光,羅亭然,趙嬌嬌,等. 多端縱聯(lián)差動(dòng)保護(hù)突變量數(shù)據(jù)自愈同步算法[J] . 電力系統(tǒng)及其自動(dòng)化學(xué)報(bào),2019,31(9) :66-71.
[15] 金華鋒,葉紅兵,凌昉,等. 復(fù)用通道誤碼和延時(shí)對(duì)線路縱差保護(hù)的影響[J] . 電力系統(tǒng)自動(dòng)化,2005,29(21) :63-66.
[16] 劉萍,張艷霞,郭駿,等. 基于線性插值的異常采樣值實(shí)時(shí)辨識(shí)方法[J] . 天津理工大學(xué)學(xué)報(bào),2015,31(4) :5-8.
[17] 羅曉宇,王秀梅. 數(shù)字式縱聯(lián)電流差動(dòng)保護(hù)算法同步策略探討[J]. 電力自動(dòng)化設(shè)備,2006,26(7) :90-94.
[18] 王芊,金華鋒,石鐵洪,等. 用于差動(dòng)保護(hù)的 E1 速率通信接口[J] . 電力系統(tǒng)自動(dòng)化,2003,27(7) :55-57.
[19] 廖能,周明平,李翔. 智能變電站過(guò)程層高精度采樣值同步技術(shù)方案研究[J]. 機(jī)電信息,2018(30) :20-21.
[20] 易炳星,劉彪,袁建黨,等. 縱聯(lián)保護(hù)通道的檢查及異常處理方法[J]. 中國(guó)化工貿(mào)易,2014(1) :39.