基于改进麻雀算法和主动限流的柔性直流配电网双极短路故障定位方法

焦家俊; 董星星; 童晓阳

doi:10.13335/j.1000-3673.pst.2024.2004

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基于改进麻雀算法和主动限流的柔性直流配电网双极短路故障定位方法

自动化 | 更新时间：2026-03-13

- 基于改进麻雀算法和主动限流的柔性直流配电网双极短路故障定位方法
- A Bipolar Short-circuit Fault Localization Method for Flexible DC Distribution Networks Integrating an Enhanced Sparrow Search Algorithm With Active Current-limiting
- 电网技术 2026年50卷第1期页码：383-390
- 作者机构：
  
  西南交通大学电气工程学院,四川省,成都市,611756
- 作者简介：
- 基金信息：
- DOI：10.13335/j.1000-3673.pst.2024.2004
  中图分类号： TM721.1;TP18
- 纸质出版：2026
- 稿件说明：
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焦家俊, 董星星, 童晓阳. 基于改进麻雀算法和主动限流的柔性直流配电网双极短路故障定位方法[J]. 电网技术, 2026,50(1):383-390.

JIAO Jiajun, DONG Xingxing, TONG Xiaoyang. A Bipolar Short-circuit Fault Localization Method for Flexible DC Distribution Networks Integrating an Enhanced Sparrow Search Algorithm With Active Current-limiting[J]. 2026, 50(1): 383-390.
焦家俊, 董星星, 童晓阳. 基于改进麻雀算法和主动限流的柔性直流配电网双极短路故障定位方法[J]. 电网技术, 2026,50(1):383-390. DOI： 10.13335/j.1000-3673.pst.2024.2004.

JIAO Jiajun, DONG Xingxing, TONG Xiaoyang. A Bipolar Short-circuit Fault Localization Method for Flexible DC Distribution Networks Integrating an Enhanced Sparrow Search Algorithm With Active Current-limiting[J]. 2026, 50(1): 383-390. DOI： 10.13335/j.1000-3673.pst.2024.2004.

摘要

为了提升现有的柔性直流配电网发生故障后迅速抑制故障电流的快速准确故障定位的能力，该文以双端背靠背柔性直流配电网为研究对象，提出一种基于改进麻雀算法和主动限流技术结合的柔性直流配电网双极短路故障定位法，包括预定位、主动限流、精确定位3个阶段。在精确定位阶段引入改进麻雀算法提高故障定位精度，抑制纹波的干扰。在PSCAD/EMTDC搭建双端背靠背柔性直流配电网模型，仿真实验结果表明，该故障定位方法在不同过渡电阻、噪声干扰、信号不同步情况下，故障定位的平均误差小于0.3%，最大误差小于0.5%，验证了该故障定位方法的有效性。

Abstract

To enhance the rapid and accurate fault location capability for fault current suppression in existing flexible DC Grid

this paper investigates a back-to-back bipolar flexible DC distribution network. It proposes a fault location method based on an improved Sparrow Search Algorithm (SSA) combined with active current limiting technology

consisting of three stages: pre-location

active fault current limiting

and precise location. In the precise location stage

the improved SSA is introduced to enhance the fault location accuracy and suppress ripple interference. A back-to-back flexible DC distribution network model is constructed in PSCAD/EMTDC. The simulation results show that the average fault location error is less than 0.3% and the maximum error is less than 0.55% under different transition resistances

noise interferences

and signal asynchronization

verifying the effectiveness of the proposed fault location method.

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