期刊
IFAC PAPERSONLINE
卷 51, 期 18, 页码 476-481出版社
ELSEVIER
DOI: 10.1016/j.ifacol.2018.09.379
关键词
latent dynamic model; dynamic data modeling; Granger causality analysis; root cause diagnosis
资金
- Natural Science Foundation of China [61490704]
- Fundamental Research Program of Shenzhen Committee on Science and Innovations [20160207, 20170155]
- Post-doctoral Fellowship Fund of the Chinese Universiry of Hong Kong, Shenzhen
- Texas-Wisconsin-California Control Consortium
In this paper, a novel dynamic-inner canonical correlation analysis (DiCCA) algorithm is proposed to extract dynamic components from high dimensional dynamic data. DiCCA extracts latent variables with descending dynamics, which are referred to as principal time series. Since DiCCA enables the principal time series to have maximal predictability, the most important dynamic features in the data are guaranteed to be extracted first. Therefore, usually a lower dimensional principal time series are able to provide good representation of the dynamic features, leading to the ease of interpretation and visualization. A case study on the Eastman plant-wide oscillating dataset demonstrates the effectiveness of the proposed method. Combined with Granger causality analysis, major oscillatory latent dynamics are analyzed, identified, and localized to equipment malfunctions. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
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