Accurate Location Method of Stator Winding Ground Fault of Variable Speed Pumped Storage Unit Based on Planetary Optimization Algorithm

QIAO Jian; WANG Kai; WANG Yikai; YIN Xin; YU Haoyuan; SU Yi; TU Liming; {{custom_author.name_en}}

doi:10.13334/j.0258-8013.pcsee.242791

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Accurate Location Method of Stator Winding Ground Fault of Variable Speed Pumped Storage Unit Based on Planetary Optimization Algorithm

更新时间：2026-06-25

- Accurate Location Method of Stator Winding Ground Fault of Variable Speed Pumped Storage Unit Based on Planetary Optimization Algorithm
- Vol. 46, Issue 7, Pages: 2824-2837(2026)
- 作者机构：
  
  1. 新能源电力系统国家重点实验室(华北电力大学),河北省,保定市,071003
  2. 武汉理工大学自动化学院,湖北省,武汉市,430070
  3. 北京四方继保自动化股份有限公司，北京市海淀区,100085
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.242791
  CLC：
- Published：2026
- 稿件说明：
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QIAO Jian, WANG Kai, WANG Yikai, et al. Accurate Location Method of Stator Winding Ground Fault of Variable Speed Pumped Storage Unit Based on Planetary Optimization Algorithm[J]. 2026, 46(7): 2824-2837.
DOI：

QIAO Jian, WANG Kai, WANG Yikai, et al. Accurate Location Method of Stator Winding Ground Fault of Variable Speed Pumped Storage Unit Based on Planetary Optimization Algorithm[J]. 2026, 46(7): 2824-2837. DOI： 10.13334/j.0258-8013.pcsee.242791.

摘要

针对大型机组故障概率最高的定子接地故障，该文提出一种基于行星优化算法的变速抽水蓄能机组定子绕组接地故障的精确定位方法。首先，根据故障等值电路分析，提出基于相量轨迹交点的故障定位思路并构造对应的故障定位最优化模型；进而，引入行星优化算法对该定位模型进行求解。结合绕组电势的分布特征，分析并总结出现故障定位结果多解现象的原因。通过引入注入式信息或三次谐波电压信息作为辅助信息，实现定位多解筛选，得到定位的唯一真解；最终，通过仿真与实验分析证明所提定位方法的有效性。

Abstract

Aiming at the stator ground fault with the highest fault probability of large units

this paper proposes an accurate location method for stator winding ground fault of variable speed pumped storage units based on planetary optimization algorithm. Firstly

according to the analysis of the fault equivalent circuit

the fault location idea based on the intersection of phasor trajectory is proposed and the corresponding fault location optimization model is constructed. Furthermore

the planetary optimization algorithm is introduced to solve the positioning model. Combined with the distribution characteristics of winding potential

the reasons for the phenomenon of multiple solutions of fault location results are analyzed and summarized. By introducing the injection information or the third harmonic voltage information as the auxiliary information

the multi-solution screening of the positioning is realized

and the unique solution of the positioning is obtained. Finally

the effectiveness of the proposed positioning method is proved by simulation and experimental analysis.

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Related Institution

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State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Huazhong University of Science and Technology)

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