| 基于电压分布和判别分析的电网故障在线定位 |
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| 引用本文： | 赵美琳,吕飞鹏,张新峰,徐小超,张向亮,肖飞.基于电压分布和判别分析的电网故障在线定位[J].华北电力大学学报,2012,39(6). |
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| 作者姓名： | 赵美琳 吕飞鹏 张新峰 徐小超 张向亮 肖飞 |
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| 作者单位： | 1. 四川大学电气信息学院,四川成都,610065
2. 云南电网公司元谋供电有限公司,云南元谋,651300 |
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| 摘 要： | 提出了一种针对广域后备保护的电网故障在线定位新方法。首先根据故障电压分布快速完成故障的一次定位,再利用广域测量系统(Wide Area Measurement System,WAMS)提供的实时电压、电流等电网电气量信息,运用判别分析中的马氏距离判别原理,最终确定出故障元件。仿真结果表明,该算法可以准确地定位出故障元件,满足在线定位的要求,为广域后备保护的实现提供了前提。
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| 关 键 词： | 在线定位 电压分布 判别分析 广域测量系统 |
Method for on-line fault locating based on voltage distribution and discriminant analysis |
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| ZHAO Mei-lin
,
L Fei-peng
,
ZHANG Xin-feng
,
XU Xiao-chao
,
ZHANG Xiang-liang
,
XIAO Fei.Method for on-line fault locating based on voltage distribution and discriminant analysis[J].Journal of North China Electric Power University,2012,39(6). |
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| Authors: | ZHAO Mei-lin L Fei-peng ZHANG Xin-feng XU Xiao-chao ZHANG Xiang-liang XIAO Fei |
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| Affiliation: | ZHAO Mei-lin
,
L(U) Fei-peng
,
ZHANG Xin-feng
,
XU Xiao-chao
,
ZHANG Xiang-liang
,
XIAO Fei |
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| Abstract: | A novel algorithm is proposed to solve the on-line fault locating problem for wide area back-up protection.Firstly,based on fault voltage distribution,the first location is accomplished quickly.Then by utilizing the real-time information of voltage and current provided by the wide area measurement system(WAMS) and combining Mahalanobis distance analysis algorithm,the faulty element is located ultimately.simulation results shows that the algorithm is precise and fast,which meets the requirement of on-line locating and can provide precondition for wide area back-up protection. |
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| Keywords: | on-line locating voltage distribution discriminant analysis WAMS |
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