±800 kV特高压直流输电双极区保护的若干问题探讨

WANG Junsheng; SHEN Guomin; LI Haiying; CAO Dongming

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±800 kV特高压直流输电双极区保护的若干问题探讨

更新时间：2025-08-13

- ±800 kV特高压直流输电双极区保护的若干问题探讨
- Automation of Electric Power Systems Vol. 30, Issue 23, Pages: 85-88(2006)
- 作者机构：
  
  1. 南京南瑞继保电气有限公司,江苏省,南京市,211100
  2. 苏州市供电公司,江苏省,苏州市,215400
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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WANG Junsheng, SHEN Guomin, LI Haiying, et al. [J]. Automation of electric power systems, 2006, 30(23): 85-88.
DOI：

WANG Junsheng, SHEN Guomin, LI Haiying, et al. [J]. Automation of electric power systems, 2006, 30(23): 85-88. DOI：

摘要

在介绍常规±500 kV高压直流输电双极区保护配置的基础上，为了达到±800 kV特高压直流输电系统最大限度保持功率输送的目的，增加了双极区保护判据，提出了新的动作处理策略。具体为:双极运行时，增加差流判据;单极运行时，提出金属回线运行方式处理策略。达到了带故障无危害持续运行的目的，减少了双极区保护动作造成双极停运的概率。

Abstract

Based on an introduction of normal±500 kV HVDC system protections in bi-pole area， this paper proposes some new protection principles and actions， which include a criterion of differential current between bi-pole under bi-pole operation mode and an action of switching to metallic return mode under mono-pole operation mode， in the bi-pole area of±800 kV ultra HVDC system. It makes the ultra HVDC system continue to operate with fault and harmless for equipment and decreases a probability of bi-pole block caused by actions of bi-pole protections.

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