| 基于改进小波包熵的SSSC串补线路故障位置识别 |
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| 引用本文： | 刘青,常彦彦,徐岩,郝威.基于改进小波包熵的SSSC串补线路故障位置识别[J].电力系统自动化,2011,35(6):65-70. |
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| 作者姓名： | 刘青 常彦彦 徐岩 郝威 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,河北省保定市,071003
2. 内蒙古工业大学电力学院,内蒙古自治区呼和浩特市,010080 |
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| 摘 要： | 静态同步串联补偿器(SSSC)的应用会对距离保护的测量阻抗产生影响,使得距离保护发生拒动或超越.文中采用改进小波包熵分析了SSSC串补线路保护安装处的暂态故障电流特征,结果表明:故障点在SSSC之前和之后时串补线路的小波包熵值明显不同,故障点在SSSC之前的小波包熵值远大于故障点在SSSC之后时的小波包熵值.根据该特征...
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| 关 键 词： | 改进小波包熵 静态同步串联补偿器 串补线路 位置识别 距离保护 |
| 收稿时间： | 7/20/2010 4:28:23 PM |
| 修稿时间： | 3/4/2011 11:26:28 AM |
Fault Position Identification for Series Compensated Transmission Lines with SSSC Based on Improved Wavelet Packet Entropy |
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| LIU Qing,CHANG Yanyan,XU Yan,HAO Wei.Fault Position Identification for Series Compensated Transmission Lines with SSSC Based on Improved Wavelet Packet Entropy[J].Automation of Electric Power Systems,2011,35(6):65-70. |
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| Authors: | LIU Qing CHANG Yanyan XU Yan HAO Wei |
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| Affiliation: | LIU Qing1,CHANG Yanyan1,XU Yan1,HAO Wei2(1.North China Electric Power University,Baoding 071003,China,2.Inner Mongolia University of Technology,Huhhot 010080,China) |
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| Abstract: | Application of static synchronous series compensator(SSSC) results in impacts on the measured impedance of distance protection,which will cause under-reaching or over-reaching of the distance protection.The improved wavelet packet entropy is used to analyze the transient fault current in the protection location of the series compensated transmission line with SSSC.The results show that the values of wavelet packet entropy are obviously different between fault points located before SSSC and behind SSSC.The v... |
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| Keywords: | improved wavelet packet entropy static synchronous series compensator(SSSC) series compensated lines position identification distance protection |
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