极化电流行波方向继电器在串补线路中的应用

LUO Shuxin

您当前的位置：

首页 >

文章列表页 >

极化电流行波方向继电器在串补线路中的应用

更新时间：2025-08-13

- 极化电流行波方向继电器在串补线路中的应用
- Automation of Electric Power Systems Vol. 38, Issue 15, Pages: 100-105(2014)
- 作者机构：
  
  电力系统及发电设备控制和仿真国家重点实验室，清华大学,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
LUO Shuxin. [J]. Automation of electric power systems, 2014, 38(15): 100-105.
DOI：

LUO Shuxin. [J]. Automation of electric power systems, 2014, 38(15): 100-105. DOI：

摘要

极化电流行波方向继电器利用电流初始行波的高频分量信息和电压行波的工频分量信息构成保护判据，突破了传统电容式电压互感器（CVT）不能有效传变高频电压信号的瓶颈，实现了行波极性比较式方向保护，并成功投入在超、特高压输电线路运行。但在含有串联补偿电容的输电线路中，串补电容的存在将对行波的传播特性产生一定影响。对极化电流行波方向继电器在串补线路应用中所存在的问题进行了分析，通过研究CVT的频率特性，对其算法进行了改进。仿真结果表明，该改进算法在串补线路中具有正确的动作特性，且在各种不同故障下都有良好的动作性能。

Abstract

The polarized current travelling wave based directional relay（PCTDR）utilizing high frequency component of initial current wave and power frequency component of voltage performs effectively in transmission line protection.This relay，which has been successfully implemented in extra-high voltage（EHV）/ultra-high voltage（UHV）transmission lines，can overcome the high frequency transmission limitations of the capacitor voltage transformer（CVT）.However，the series capacitor has a significant impact on the travelling wave propagation characteristic in series compensated lines.In this regard，the application problems of PCTDR in series compensated lines are firstly analyzed.Moreover，an improved PCTDR algorithm is proposed based on an investigation of the frequency response of CVT.Further，extensive simulation results have shown that the improved algorithm has a good performance in series compensated lines and is well adaptive in various fault conditions.

关键词

Keywords

references

Views

3367

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

极化电流行波方向继电器在带并联电抗器输电线上的特性

不同频带下电压故障行波极性的一致性分析

极化电流行波方向继电器

输电线路单端行波故障测距新算法(英文)

Related Author

REN Li

WANG Shiyong

DONG Xinzhou

SHI Shenxing

XU Qingshan

L.L.LAI

CHEN Jingen

TANG Guoqing

Related Institution

Department of Electrical Engineering， Tsinghua University

State Key Lab of Power Systems， Department of Electrical Engineering， Tsinghua University

Southeast University

Energy Systems Research Group, City University

Faculty of Electric Power Engineering, Kunming University of Science and Technology

⁰