文章基本信息

标题：Extraction of Plant-wide Oscillations using Fast Multivariate Empirical Mode Decomposition ⁎
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作者：Xun Lang ; Zhiming Zhang ; Qian Zheng 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：18
页码：809-814
DOI：10.1016/j.ifacol.2018.09.261
语种：English
出版社：Elsevier
摘要：AbstractThis paper proposes a novel time-frequency method for plant-wide oscillation analysis based on the multivariate extension of standard empirical mode decomposition (EMD). The raised fast multivariate empirical mode decomposition (FMEMD) is generalized from EMD by solving an overdetermined system of linear equations. Due to its capability to analyze multiple channels data, FMEMD is especially suitable for characterizing plant-wide control loop oscillations. Unlike traditional methods, both the regularity of oscillations (in frequency domain) and evolution of local characteristics (in time scale) can be well captured via FMEMD. Validity of the raised approach is demonstrated on simulations as well as an industrial case.
关键词：KeywordsEMDFMEMDplant-wide oscillationsoverdetermined linear equations