基于改进麻雀搜索算法优化KELM的变压器故障诊断方法

徐松晓; 赵军愉; 张元波; 路小军; 王艳; 李伟

doi:10.13296/j.1001-1609.hva.2026.06.006

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基于改进麻雀搜索算法优化KELM的变压器故障诊断方法

研究与分析 | 更新时间：2026-06-10

- 基于改进麻雀搜索算法优化KELM的变压器故障诊断方法
- Transformer Fault Diagnosis Method Based on KELM Optimized by Improved Sparrow Search Algorithm
- 高压电器 2026年62卷第6期页码：50-58
- 作者机构：
  
  国网保定供电公司，河北保定 071051
  华北电力大学电气与电子工程学院，河北保定 071003
- 作者简介：
  
  徐松晓（1981—），男，硕士，高级工程师，主要研究方向为电力系统及其自动化（E-mail：xusongxiao@163.com）。
  赵军愉（1989—），男，硕士研究生，工程师，主要研究方向为电力系统及其自动化（E-mail：770015335@qq.com）。
  张元波（1984—），男，硕士，高级工程师，主要研究方向为电力系统及其自动化（E-mail：437106183@qq.com）。
  王艳（1981—），女，博士，副教授，主要研究方向为电力设备态势感知与智能运维、电力系统通信、电力系统继电保护（通信作者）（E-mail：18288061@qq.com）。
- 基金信息：
  
  国家自然科学基金项目;National Natural Science Foundation of China(51807063);国家电网公司项目（智能配电网规划设计与设备态势感知及智能运维技术研究与应用）;State Grid Corporation of China Project (Research and Application of Planning and Design of Smart Distribution Networks, Equipment Situation Awareness, and Intelligent Operation and Maintenance Technologies)
- DOI：10.13296/j.1001-1609.hva.2026.06.006
  中图分类号：
- 收稿：2025-11-15，
  
  修回：2026-02-02，
  
  纸质出版：2026-06-16
- 稿件说明：
移动端阅览
徐松晓, 赵军愉, 张元波, 等. 基于改进麻雀搜索算法优化KELM的变压器故障诊断方法[J]. 高压电器, 2026,62(6):50-58.

XU Songxiao, ZHAO Junyu, ZHANG Yuanbo, et al. Transformer Fault Diagnosis Method Based on KELM Optimized by Improved Sparrow Search Algorithm[J]. High Voltage Apparatus, 2026, 62(6): 50-58.
徐松晓, 赵军愉, 张元波, 等. 基于改进麻雀搜索算法优化KELM的变压器故障诊断方法[J]. 高压电器, 2026,62(6):50-58. DOI： 10.13296/j.1001-1609.hva.2026.06.006.

XU Songxiao, ZHAO Junyu, ZHANG Yuanbo, et al. Transformer Fault Diagnosis Method Based on KELM Optimized by Improved Sparrow Search Algorithm[J]. High Voltage Apparatus, 2026, 62(6): 50-58. DOI： 10.13296/j.1001-1609.hva.2026.06.006.

摘要

针对传统浅层机器学习在特征提取方面的不足，为增强其对变压器故障诊断的能力，提出一种基于改进麻雀搜索算法优化KELM的变压器故障诊断方法。首先利用深度置信网络（deep belief networks，DBN）对变压器故障样本数据进行特征提取；其次，将引入惩罚因子C和核函数参数S的核极限学习机（kernel extreme learning machine，KELM）作为分类器，深入分析易混淆样本的特征值与变压器故障类型间的关联性，进一步提高故障诊断模型的稳定性和泛化能力；然后，利用Levy变异因子改进的麻雀搜索算法（improved sparrow search algorithm，ISSA）优化KELM的惩罚因子C和核函数参数S，以增强的麻雀搜索算法的全局搜索能力，进一步提高故障诊断模型的稳定性和准确率。最后，基于油中溶解气体数据的变压器故障诊断实验结果表明：所提基于ISSA优化KELM的变压器故障诊断方法，收敛速度更快、稳定性更好、诊断准确率更高，适用于变压器故障诊断。

Abstract

To address the limitations of traditional shallow machine learning in feature extraction and to enhance its capability for transformer fault diagnosis

a transformer fault disgnosis method based on KELM optimized by an improved sparrow search algorithm is proposed. First

the deep belief networks (DBN) is used for feature extraction of transformer fault sample data.Then

the kernel extreme learning machine (KELM) with penalty factor C and kernel function parameter S is used as a classifier to analyze deeply the correlation between features of confusable samples and fault types and improve the stability and generalization ability of the model.After that

the improved sparrow search algorithm (SSA) with Levy mutation factor is used to optimize the penalty factor C and kernel function parameter S of KELM to enhance the global search ability of the algorithm and improve both stability and accuracy of fault diagnosis of the model. Finally

the experimental results of transformer fault diagnosis based on dissolved gas data in oil show that the proposedISSA-KELMtransformer fault diagnosis method has faster convergence speed

better stability and higher diagnostic accuracy

and is suitable for transformer fault diagnosis.

关键词

Keywords

references

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