基于采样值极性变化的主动干预式消弧装置故障选线新方法

古展基; 苏忠阳; 蔡泽祥; 黄勇; 杨文勇; 李凡

doi:10.13296/j.1001-1609.hva.2026.10.023

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基于采样值极性变化的主动干预式消弧装置故障选线新方法

技术讨论 | 更新时间：2026-10-14

- 基于采样值极性变化的主动干预式消弧装置故障选线新方法
- Novel Fault Line Selection Method for Active Intervention Arc Suppression Device Based on Polarity Change of Sampled Values
- 高压电器 2026年62卷第10期页码：203-212
- 作者机构：
  
  深圳市国电科技通信有限公司，广东深圳 518109
  广州穗华能源科技有限公司，广州 510530
  华南理工大学电力学院，广州 510640
  贵州电网有限责任公司毕节供电局，贵州毕节 551700
- 作者简介：
  
  古展基（1993—），男，硕士研究生，工程师，研究方向为电力系统保护与控制（通信作者）（E-mail：guzhanji@qq.com）。
  苏忠阳（1969—），男，硕士研究生，教授级高级工程师，研究方向为电力系统自动化（E-mail：suzhongyang@gzzeta.cn）。
  蔡泽祥（1960—），男，博士生导师，教授，研究方向为电力系统保护与控制（E-mail：epzxcai@scut.edu.cn）。
- 基金信息：
  
  国家自然科学基金项目;National Natural Science Foundation of China(51577073);中国南方电网公司科技项目;Science and Technology Project of China Southern Power Grid Company(060700KK52170016);广东省重点领域研发计划项目Key-area Research and Development Program of Guangdong Province .(2019B111109002)
- DOI：10.13296/j.1001-1609.hva.2026.10.023
  中图分类号：
- 收稿：2026-04-10，
  
  修回：2026-07-05，
  
  纸质出版：2026-10-16
- 稿件说明：
移动端阅览
古展基, 苏忠阳, 蔡泽祥, 等. 基于采样值极性变化的主动干预式消弧装置故障选线新方法[J]. 高压电器, 2026,62(10):203-212.

GU Zhanji, SU Zhongyang, CAI Zexiang, et al. Novel Fault Line Selection Method for Active Intervention Arc Suppression Device Based on Polarity Change of Sampled Values[J]. High Voltage Apparatus, 2026, 62(10): 203-212.
古展基, 苏忠阳, 蔡泽祥, 等. 基于采样值极性变化的主动干预式消弧装置故障选线新方法[J]. 高压电器, 2026,62(10):203-212. DOI： 10.13296/j.1001-1609.hva.2026.10.023.

GU Zhanji, SU Zhongyang, CAI Zexiang, et al. Novel Fault Line Selection Method for Active Intervention Arc Suppression Device Based on Polarity Change of Sampled Values[J]. High Voltage Apparatus, 2026, 62(10): 203-212. DOI： 10.13296/j.1001-1609.hva.2026.10.023.

摘要

文中基于主动干预式消弧装置动作前后故障特征，通过理论分析零序电流相量变化与接地电阻、线路长度的函数非单调关系，证实以故障线路在快速开关合闸前后的突变量模最大为依据的单相接地选线方法，存在误选线路的可能。依据函数关系中极性分析结果，分别从硬件采样模块和软件选线方法这两个层面，提出了一种基于高频采样模块的零序电流暂态波形采样值极性识别选线法。该方法一方面利用霍尔传感器高频传变特性，研制成高频采样模块，另一方面，利用在接地故障时，仅故障线路零序电流极性相反这一故障特征，设计了经由采样值极性识别与投票的接地选线方案。为验证新选线方法有效性，通过在PSCAD/EMTDC搭建仿真系统，并在1∶1真型试验场中，搭建典型工况模拟故障场景进行试验。仿真和试验结果均表明了新选线算法的有效性，且有一定的工程应用价值。

Abstract

Based on the fault characteristics before and after operation of the active intervention arc suppression device

in this paper the non-monotonic relationship between thezero sequence current phasor variation and both the grounding resistance and the line length is analyzed theoretically. It is thereby confirmed that the single-phase grounding fault line selection

which is based on the criterion of the maximum variation magnitude of the fault line before and after the fast switching operation

may result in incorrect line selection. Based on the polarity analysis result derived from the function relationship

this paper proposes a novel line selection method that identifies the polarity of sampled zero-sequence current transient waveform using a high-frequency sampling module. The proposed method is systematically realized through improvements at both the hardware sampling stage and the software algorithmic level. On the one hand

the high frequency sampling module is developed by using the high frequency transmission characteristic of Hall sensor. On the other hand

by utilizing the fault characteristic that only the zero-sequence polarity of the faulty line is reserved during a groundign fault

a grounding line selection scheme is desifned based on polarity identidfication of sampled values and a voting mechanism.For verifing the effectiveness of the novel line selection method

a simulation system is built inPSCAD/EMTDC

and a simulation fault scene under typical working conditions is constructed in a 1∶1 full-scale test field for test. Both Simulation and experimental results show not only the effectiveness of the novel line selection algorithm

but also its engineering application value.

关键词

Keywords

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