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

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礦山輸電線路故障行波分析與定位方法

來源:電工電氣發(fā)布時間:2016-04-06 09:06 瀏覽次數(shù):24

礦山輸電線路故障行波分析與定位方法 

李潔1,趙巖1,韓興軍2,呂萬豐3 
1 內(nèi)蒙古科技大學 信息工程學院,內(nèi)蒙古 包頭 014010;
2 呼和浩特鐵路局,內(nèi)蒙古 呼和浩特 010000; 3 宜昌供電公司,湖北 宜昌 443000
 
 

摘 要:在礦山配電網(wǎng)輸電線路發(fā)生故障時,要快速準確地確定故障點,及時切除故障,降低停電損失。利用電力系統(tǒng)發(fā)生故障后產(chǎn)生的行波進行定位的理論,分析了輸電線路故障的行波過程,通過提取分析暫態(tài)行波中包含的故障信息,準確及時地檢測出故障點。通過MATLAB建模仿真,設置不同阻值的接地電阻和故障點,行波測距的結果沒有改變,驗證了行波測距的準確性。
關鍵詞:礦山輸電線路;暫態(tài)行波;MATLAB仿真
中圖分類號:TM755 文獻標識碼:A 文章編號:1007-3175(2014)04-0031-05


Traveling Wave Analysis and Location Method of Mining Transmission Line Faults 

LI Jie1, ZHAO Yan1, HAN Xing-jun2, LV Wan-feng3 
1 College of Information Engineering , Inner Mongolia University of Science & Technology, Baotou 014010 China; 
2 Hohhot Railway Bureau, Hohhot 010000, China; 
3 Yichang Power Supply Company, Yichang 443000, China
 
 

Abstract: When the faults take place in the mining distribution transmission line, there is a need to quickly and correctly determine fault points and to switch off the fault to reduce power failure losses. This paper proposed the theory using the traveling wave generating after power system faults taking place to carry out location and analyzed the traveling wave process of transmission line faults. Via pick-up and analysis of the fault information contained in transient traveling wave, the fault points could be detected correctly in time. Through Matlab software modeling simulation and setting grounding resistance of different values and fault points, it is found that there is no change for traveling wave distance measurement, which verifies the correctness of traveling wave distance measurement.
         Key words: mining transmission line; transient traveling wave; MATLAB simulation


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