| 基于零序功率方向的中性点不接地系统在线故障定位 |
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| 引用本文： | 张利,杨鹏,司冬梅,齐超,杨以涵. 基于零序功率方向的中性点不接地系统在线故障定位[J]. 电力系统自动化, 2008, 32(17): 79-82 |
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| 作者姓名： | 张利 杨鹏 司冬梅 齐超 杨以涵 |
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| 作者单位： | 华北电力大学电气工程学院,北京市,102206;北京机械工业学院,北京市,100085;华北电力大学电气工程学院,北京市,102206 |
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| 摘 要： | 提出了基于零序功率方向的在线故障定位方法，判断故障和非故障路径上零序电压和零序电流的相位差，利用全球定位系统（GPS）的秒脉冲为相位获取提供基准，借助通用分组无线业务（GPRS）传送相位信息，实现配电网在线故障定位。物理模型实验证明了该方法的有效性。
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| 关 键 词： | 配电网 单相接地故障 故障定位 零序功率方向 GPS GPRS |
| 收稿时间： | 2008-05-15 |
| 修稿时间： | 2008-08-23 |
Online Fault Location of Neutral Point Ungrounded Distribution Network Based on Zero-sequence Power Direction |
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| ZHANG Li,YANG Peng,SI Dongmei,QI Chao,YANG Yihan. Online Fault Location of Neutral Point Ungrounded Distribution Network Based on Zero-sequence Power Direction[J]. Automation of Electric Power Systems, 2008, 32(17): 79-82 |
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| Authors: | ZHANG Li YANG Peng SI Dongmei QI Chao YANG Yihan |
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| Abstract: | A new method for online fault location based on the zero-sequence power direction is presented,in which the phase error of zero-sequence voltage and current on faulty line and healthy line is calculated.The GPS second pulse is used as the time base for phase acquisition while the phase information is transmitted via the general packet radio service(GPRS).The proposed method is proved effective by physical experiment. |
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| Keywords: | distribution network single phase to ground fault fault location zero-sequence power direction GPS general packet radio service(GPRS) |
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