The Application of Heterogeneous Information Fusion in Misalignment Fault Diagnosis of Wind Turbines

Yancai Xiao, Yujia Wang and Zhengtao Ding
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Yancai Xiao: School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Yujia Wang: School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Zhengtao Ding: School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UK

Energies, 2018, vol. 11, issue 7, 1-15

Abstract: The misalignment of the drive system is one of the important factors causing damage to gears and bearings on the high-speed output end of the gearbox in doubly-fed wind turbines. How to use the obtained information to determine the types of the faults accurately has always been a challenging problem for researchers. Under the restriction that only one kind of signal is used in the current wind turbine fault diagnosis, a new method based on heterogeneous information fusion is presented in this paper. The collected vibration signal, temperature signal, and stator current signal are used as original sources. Their time domain, frequency domain and time-frequency domain information are extracted as fault features. Taking into account the correlation between the features, t-distributed Stochastic Neighbor Embedding (t-SNE) is used to reduce the dimensionality of the original combinations. Then, the fusion features are put into the Least Square Support Vector Machine (LSSVM), which is optimized by artificial bee colony (ABC) algorithm. The simulation tests show that this method has higher diagnostic accuracy than other methods.

Keywords: wind turbines; misalignment; fault diagnosis; t-SNE; artificial bee colony algorithm; least squares support vector 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: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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