Title
A Novel Sliding Window PCA-IPF Based Steady-State Detection Framework and Its Industrial Application.
Abstract
In industrial processes, it is of great significance to carry out steady-state detection (SSD) for effective system modeling, operation optimization, performance evaluation, and process monitoring. Traditional SSD approaches often need to identify process state for each variable and obtain a composite index with sliding window technique, which ignores the variable correlations and is time consuming. Moreover, they can only provide the state of each whole window that slides along data series. To deal with these problems, a novel sliding window principal component analysis-improved polynomial fitting based method is proposed for steady-state detection. In the proposed framework, principal component analysis is first used to eliminate the data correlations and variable noises. Then, the size of sliding window is automatically determined by the data series of the first principal component. After that, SSD is carried out for each selected principal component by 2nd-order improved polynomial fitting. At last, the overall process state is determined by the weighted combination of the SSD results of selected principal components, in which the weight of each principal component is determined by its corresponding contribution of variance. The effectiveness and flexibility of the proposed SSD framework is validated on an industrial hydrocracking process.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2825451
IEEE ACCESS
Keywords
Field
DocType
Steady-state detection,principal component analysis,polynomial fitting,sliding window,hydrocracking process
Microsoft Windows,Sliding window protocol,Polynomial,Process state,Computer science,Algorithm,Systems modeling,Process control,Steady state,Principal component analysis,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
YaLin Wang16419.24
Kenan Sun200.34
Xiaofeng Yuan35714.66
Yue Cao440.73
Ling Li53118.52
Heikki N. Koivo69020.56