Fault diagnosis of wind turbine bearings based on VMD-Tsallis entropy and SVM

Zhibo Gao; Caiping Xi; Yunfan Yang

doi:10.1117/12.2672870

25 April 2023 Fault diagnosis of wind turbine bearings based on VMD-Tsallis entropy and SVM

Zhibo Gao, Caiping Xi, Yunfan Yang

Proceedings Volume 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022); 1259812 (2023) https://doi.org/10.1117/12.2672870
Event: Eighth International Conference on Energy Materials and Electrical Engineering (ICMEE 2022), 2022, Guangzhou, China

Abstract

Due to the harsh environment in which wind turbines work for long periods of time, the internal drive train is prone to fatigue failure. Rolling bearings are an important component within wind turbines, so it is essential to implement condition detection and fault diagnosis of rolling bearings. This paper proposes a fault signal feature extraction method based on VMD and Tsallis entropy. Firstly, the bearing signals of four different states are decomposed using VMD decomposition, and the IMF components generated after the decomposition are quantitatively characterized using Tsallis entropy, and the features with stability and differentiation are selected to form the feature vector of the fault and input to a support vector machine for classification. The experimental results show that the proposed method can distinguish different fault bearing signals and has some improvement in classification effect compared with KNN, fine tree and intermediate tree classifiers. The proposed method presents a new idea for the fault diagnosis of rolling bearings in wind turbines.

Citation Download Citation

Zhibo Gao, Caiping Xi, and Yunfan Yang "Fault diagnosis of wind turbine bearings based on VMD-Tsallis entropy and SVM", Proc. SPIE 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022), 1259812 (25 April 2023); https://doi.org/10.1117/12.2672870

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