| 配电自动化系统的分布式小电流接地保护原理 |
| |
| 引用本文： | 焦邵华,肖仕武,秦立军.配电自动化系统的分布式小电流接地保护原理[J].电力设备,2001,2(3):45-47. |
| |
| 作者姓名： | 焦邵华 肖仕武 秦立军 |
| |
| 作者单位： | 北京四方华能电网控制系统有限公司,北京,100085 |
| |
| 摘 要： | 简要介绍了四方华能公司的CSDA2000配电自动化系统中的小电流接地保护原理.提出采用小电流接地负序电流故障分量法来进行故障选线,具有不受中性点电抗补偿的影响,且故障特征明显的优点.随着配电自动化的实施,馈线远方终端(FTU)在线路沿线的安装,负序电流故障分量法通过比较接地点两侧的故障特征也可以清楚地判断故障位置.为了提高信号分析的灵敏度,采用小波变换对负序电流故障分量进行处理后,可更清晰地区分出故障线路.经理论及仿真验证,该方法是一种非常有效的小电流接地故障选线、定位方法.
|
| 关 键 词： | 小电流系统 故障选线 负序故障量 小波分析 |
| 修稿时间： | 2001年8月2日 |
Principle of Small Current Distributed Grounding Protection System in Distribution Automation System |
| |
| Jiao Shaohua,Xiao Shiwu,Qin Lijun.Principle of Small Current Distributed Grounding Protection System in Distribution Automation System[J].Electrical Equipment,2001,2(3):45-47. |
| |
| Authors: | Jiao Shaohua Xiao Shiwu Qin Lijun |
| |
| Abstract: | The paper introduces briefly the principle of small current grounding protection in distribution automation system of type CSDA 2000 developed by Sifang Huaneng Co.Limited,presents the method of faulty line selection based on negative sequence cur- rent component induced by small current grounding.By theoretical and simulative analysis,this method is very effective for small current faulty line selection and fault location. |
| |
| Keywords: | small current system faulty line selection negative sequence fault parameter wavelet analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
