Analysis of the Influencing Factors on Electric Characteristics of HVDC Line Faults

REN Da-yong1; YANG Ze-min1; LI Ai-min2; CAI Ze-xiang2

doi:10.13296/j.1001-1609.hva.2010.11.010

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Analysis of the Influencing Factors on Electric Characteristics of HVDC Line Faults

更新时间：2025-04-26

- Analysis of the Influencing Factors on Electric Characteristics of HVDC Line Faults
- High VoltageApparatus Vol. 46, Issue 11, Pages: 70-73(2010)
- 作者机构：
  
  1. 中国南方电网超高压输电公司天生桥局
  2. 华南理工大学电力学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.11.010
  CLC： TM721.1
- Published：2010
- 稿件说明：
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[1]任达勇,杨泽明,李爱民,蔡泽祥.高压直流输电线路故障特征影响因素分析[J].高压电器,2010,46(11):70-73.

REN Da-yong1, YANG Ze-min1, LI Ai-min2, et al. Analysis of the Influencing Factors on Electric Characteristics of HVDC Line Faults[J]. High voltageapparatus, 2010, 46(11): 70-73.
[1]任达勇,杨泽明,李爱民,蔡泽祥.高压直流输电线路故障特征影响因素分析[J].高压电器,2010,46(11):70-73. DOI： 10.13296/j.1001-1609.hva.2010.11.010.

REN Da-yong1, YANG Ze-min1, LI Ai-min2, et al. Analysis of the Influencing Factors on Electric Characteristics of HVDC Line Faults[J]. High voltageapparatus, 2010, 46(11): 70-73. DOI： 10.13296/j.1001-1609.hva.2010.11.010.

摘要

详细研究直流线路故障特征及其影响因素

对制定线路保护方案以及保证直流系统安全运行具有重要意义。为了进一步分析故障极直流线路的故障特征

笔者在建立直流线路故障等值电路模型基础上

应用拉普拉斯变换求解电路方程。分析了不同故障条件包括过渡电阻、故障位置、初始负荷水平和直流控制系统对于直流线路故障特征量的影响。指出过渡电阻是影响直流电压的主要影响因素

直流控制系统是影响故障后直流电流涌流的主要影响因素。该结论应用于天广直流改造工程中

实践证明了其正确性。

Abstract

The detailed studying of DC line fault feature and its influencing factors are very important to shape line protection project and to ensure the safe operation of the DC system.In order to further analyze the fault characteristics of a DC fault line

a transient equivalent circuit model of the HVDC system with line faults was set up and solved by using Laplace transform for further analyzing the fault characteristics of a HVDC line.The influencing factors on electric characteristics of HVDC line faults

such as fault impedance

fault position

load levels and control system

were analyzed.The results indicate that the most important factor influencing voltage is the fault impedance

and the most important factor influencing short circuit current is the DC control system.The conclusion is verified right in the Tianshengqiao-Guangzhou HVDC reform project.

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Related Institution

College of Electrical and Information Engineering, Lanzhou University of Technology

Key Laboratory of Gansu Province Advanced Control for Industrial Processes

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Guangdong Electric Power Design Institute

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