Novel Pilot Protection for Transmission Line with Shunt Reactor at Double Terminal

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Novel Pilot Protection for Transmission Line with Shunt Reactor at Double Terminal

更新时间：2025-07-09

- Novel Pilot Protection for Transmission Line with Shunt Reactor at Double Terminal
- Vol. 43, Issue 10, Pages: 99-103(2009)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM773
- Online First：10 October 2009，
  
  Published：2009
- 稿件说明：
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Novel Pilot Protection for Transmission Line with Shunt Reactor at Double Terminal[J]. 2009, 43(10): 99-103.
DOI：

Novel Pilot Protection for Transmission Line with Shunt Reactor at Double Terminal[J]. 2009, 43(10): 99-103. DOI：

摘要

提出了一种基于参数识别的双端带并联电抗器的输电线路纵联保护原理.在故障附加状态网络的基础上

为内部故障和外部故障建立了具有相同形式的电感模型.利用参数识别的原理求取模型中的电感参数

并计算其对应感抗.内部故障时

它反映两端的系统感抗

为一个较小的负数; 外部故障时

它反映并联电抗器的感抗

是一个较大的正数.根据所得感抗的符号和大小来区分内部故障和外部故障.该原理采用了基于线路π模型的解微分方程算法

不受非周期分量和过渡电阻的影响

整定简单.EMTP和动模实验数据仿真验证了该方法的有效性.

Abstract

A new type of pilot protection for transmission line with shunt reactors at double terminal following parameter identification is proposed. Based on the fault component nets

R-L models with the same pattern are established for the internal fault state and the external fault state. The inductance in R-L models can be evaluated by parameter identification. When an internal fault occurs

the inductance reflects the impedance of the system source as a smaller minus

and when an external fault occurs

it signs the inductance of reactor as a greater positive

thus the internal fault and external fault are distinguished. The criterion is not influenced by the transient components and fault resistance

and also can be easily set. EMTP simulation shows the higher sensitivity

reliability and effectiveness.

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references

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Related Author

邵文权 1

加玛力汗 3

宋国兵 1

索南加乐 1

何世恩 1

Related Institution

Electrical Engineering Department, Xi'an Polytechnic University

西安交通大学电力设备电气绝缘国家重点实验室

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University

The Advanced Power Research Institute, Hangzhou Steam Turbine Power Group

School of Energy and Power Engineering, Xi'an Jiaotong University

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