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

Energies

Zhihuai Xiao¹  Sixu Huang²  Fang Yuan²  Jiang Guo²  Bing Zeng²  Wenqiang Zhu² 

[1] College of Power & Mechanical Engineering, Wuhan University, Wuhan 430072, China;Intelligent Power Equipment Technology Research Center, Wuhan University, Wuhan 430072, China;

关键词: transformer;    fault diagnosis;    dissolved gas analysis;    twin support vector machines;    chemical reaction optimization algorithm;    restricted Boltzmann machine;   

DOI  :  10.3390/en12050960

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown