Journal
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
Volume 17, Issue 5, Pages 3324-3334Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2020.3030179
Keywords
Fault diagnosis; Correlation; Kernel; Generators; Informatics; Neural networks; Principal component analysis; Bayesian classifier; canonical variate analysis (CVA); deep neural networks (DNN); fault diagnosis; Fisher discriminant analysis (FDA); residual generator
Categories
Funding
- National Natural Science Foundation of China [61703371]
- Social Development Project of Zhejiang Provincial Public Technology Research [LGF19F030004, TII-20-3359]
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A novel data-driven fault diagnosis method was proposed, combining deep learning and statistical analysis to achieve better fault classification results through deep neural networks and analysis of feature space.
In this article, a novel data-driven fault diagnosis method by combining deep canonical variate analysis and Fisher discriminant analysis (DCVA-FDA) is proposed for complex industrial processes. Inspired by the recently developed deep canonical correlation analysis, a new nonlinear canonical variate analysis (CVA) called DCVA is first developed by incorporating deep neural networks into CVA. Based on DCVA, a residual generator is designed for the fault diagnosis process. FDA is applied in the feature space spanned by residual vectors. Then, a Bayesian inference classifier is performed in the reduced dimensional space of FDA to label the class of process data. A continuous stirred-tank reactor and an industrial benchmark of the Tennessee Eastman process are carried out to test the performance of DCVA-FDA fault diagnosis. The experimental results demonstrate that the proposed DCVA-FDA fault diagnosis is able to significantly improve the fault diagnosis performance when compared to other methods also examined in this article.
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