JIANG Sheng, KUANG Tianliang, LI Xiuxi. A chemical process fault detection method based on sparse filtering feature learning[J]. CIESC Journal, 2019, 70(12): 4698-4709
JIANG Sheng, KUANG Tianliang, LI Xiuxi. A chemical process fault detection method based on sparse filtering feature learning[J]. CIESC Journal, 2019, 70(12): 4698-4709DOI: 10.11949/0438-1157.20190894.
A chemical process fault detection method based on sparse filtering feature learning
Process safety has always been one of the most important issues in the chemical industry
fault detection and diagnosis(FDD) is one of the most powerful tools for chemical process abnormal events management
which provides guarantee for process safety. With the development of deep learning
many intelligent learning algorithms have been proposed
but these algorithms are rarely applied to FDD. In this paper
a novel chemical process fault diagnosis method is proposed based on sparse filtering and logistic regression (SFLR) .The main idea of this method is to divide chemical process raw data into training data and test data firstly
then standardized and whitening preprocessing
and then train sparse filtering(SF) model with three layers of neural networks
and use the SF model for unsupervised feature learning. Finally
logistic regression(LR) model with supervised learning is used to classify the chemical process health conditions using learned features. The proposed method was verified by the TE process and the non-catalytic oxidation of cyclohexane to cyclohexanone. The results show that the proposed method has high diagnostic accuracy
and the case study shows that the proposed method can diagnose faults in a timely and effective manner.
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