RESEARCH PAPER
A novel NMF-DiCCA deep learning method and its application in wind turbine blade icing failure identification
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1
School of information science and engineering, Yunnan University, China
2
The School of Engineering, and Yunnan Key Laboratory of Intelligent Systems and Computing, Yunnan University, China
These authors had equal contribution to this work
Submission date: 2023-12-02
Final revision date: 2024-04-19
Acceptance date: 2024-06-23
Online publication date: 2024-07-13
Publication date: 2024-07-13
Corresponding author
Peng Li
School of information science and engineering, Yunnan University, Kunming, China
Eksploatacja i Niezawodność – Maintenance and Reliability 2024;26(4):190381
HIGHLIGHTS
- The improved DiCCA algorithm based on NMF is used to extract the dynamic latent variables of nonlinear data.
- SSAE is utilized for extracting latent structural features, while GRU is employed to capture temporal correlation hidden features.
- Feature fusion using attention mechanism combines SSAE and GRU to achieve feature characterization.
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ABSTRACT
Wind turbine blade icing data has the characteristics of multi-source and multi variable. It is difficult to characterize and identify the icing failure with multi-scale features. In this paper, a novel Non-negative Matrix Factorization-Dynamic-inner Canonical Correlation Analysis (NMF-DiCCA )based on GRU and SSAE algorithm is proposed to solve this problem. Firstly, using NMF instead of SVD decomposition method in DiCCA algorithm, the NMF-DiCCA is applied to obtain the dynamic latent variable of time serie. Secondly, the latent structure features S of dynamic latent variable is captured by SSAE. Thirdly, the temporal correlation hidden feature H of dynamic latent variable is extracted by Gated Recurrent Unit (GRU). Finally, the attention weight distribution between latent structure S and temporal correlation hidden feature H is integrated using the attention mechanism, and the fusion feature is reconstructed using the improved SSAE(ISSAE) based on GRU and SSAE.
FUNDING
This work was supported in part by the National Natural Science Foundation of China(62163036)(Corresponding author: Peng Li) Major Project of Science and Technology of Yunnan Province (202402AD080001)(Third author:Xun Lang) Xingdian Talent Support Program - Industrial Innovation Talent Project (XDYC-CYCX-2022-0010) (Corresponding author: Peng Li) Yunnan Province Young and Middle-aged Academic Technology Leaders Training Program(202105AC160094) (Corresponding author: Peng Li) Yunnan Fundamental Research Projects under Grant(202301AT070277)(Third author:Xun Lang).