期刊
CHEMICAL ENGINEERING RESEARCH & DESIGN
卷 91, 期 5, 页码 831-842出版社
ELSEVIER
DOI: 10.1016/j.cherd.2012.09.006
关键词
Batch process; Multimode process monitoring; Kernel PCA; Subspace separation
In the paper, a new process monitoring approach is proposed for handling the multimode monitoring problem in the industrial batch processes. Compared to conventional method, the contributions are as follows: a new method of extracting the common subspace of different modes is proposed based on the subspace separation; after that the two different subspaces are separated, the kernel principal component models is built for the common and specific subspace respectively and the monitoring is carried out in subspace. The monitoring is carried out in the subspaces. The corresponding confidence regions are constructed according to their models respectively. (c) 2012 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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