Fault detection and identification in chemical processes based on feature engineering and kernel extreme learning machine

被引:0
|
作者
Ren Y.-J. [1 ]
Wang J. [1 ]
Tian W.-D. [1 ]
机构
[1] College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao
关键词
Fault detection and recognition; Genetic algorithm; Independent component analysis; Kernel extreme learning machine; Mutual information;
D O I
10.3969/j.issn.1003-9015.2019.05.031
中图分类号
学科分类号
摘要
A combination of feature engineering and kernel extreme learning machine (KELM) was proposed to detect and identify chemical process faults that possess features of complexity, non-Gaussian data and strong coupling. Original data was first mapped into independent directions by independent component analysis (ICA) algorithm, and the statistics of the data was calculated to identify the fault. Moreover, in order to improve the accuracy of the classification, every two samples were compared with each other using mutual information (MI), and the core variables were selected by contribution degree and correlation. Finally, the acquired features were input into KELM for fault classification. Genetic algorithm was used to optimize the parameters to improve diagnostic accuracy. Application of this method to the Tennessee Eastman (TE) process and an industrial depropanation process indicates that the proposed method can effectively detect faults and accurately identify fault types. © 2019, Editorial Board of "Journal of Chemical Engineering of Chinese Universities". All right reserved.
引用
收藏
页码:1271 / 1284
页数:13
相关论文
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