A Transformer Fault Diagnosis Model Based on Chemical Reaction Optimization and Twin Support Vector Machine

Fang Yuan, Jiang Guo, Zhihuai Xiao, Bing Zeng, Wenqiang Zhu and Sixu Huang
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Fang Yuan: Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China
Jiang Guo: Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China
Zhihuai Xiao: College of Power & Mechanical Engineering, Wuhan University, Wuhan 430072, China
Bing Zeng: Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China
Wenqiang Zhu: Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China
Sixu Huang: Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China

Energies, 2019, vol. 12, issue 5, 1-18

Abstract: The condition monitoring and fault diagnosis of power transformers plays a significant role in the safe, stable and reliable operation of the whole power system. Dissolved gas analysis (DGA) methods are widely used for fault diagnosis, however, their accuracy is limited by the selection of DGA features and the performance of fault diagnosis models, for example, the classical support vector machine (SVM), is easily affected by unbalanced training samples. This paper presents a transformer fault diagnosis model based on chemical reaction optimization and a twin support vector machine. Twin support vector machines (TWSVMs) are used as classifiers for solving problems involving unbalanced and insufficient samples. Restricted Boltzmann machines (RBMs) are used for data preprocessing to ensure the effective identification of feature parameters and improve the efficiency and accuracy of fault diagnosis. The chemical reaction optimization (CRO) algorithm is used to optimize TWSVM parameters to select the optimal training parameters. The cross-validation (CV) method is used to ensure the reliability and generalization ability of the diagnostic model. Finally, the validity of the model is verified using real fault samples and random testing.

Keywords: transformer; fault diagnosis; dissolved gas analysis; twin support vector machines; chemical reaction optimization algorithm; restricted Boltzmann machine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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