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	Design of multivariate alarm systems based on online calculation of variational directions
	Chen, Kuang ; Wang, Jiandong
刊名	CHEMICAL ENGINEERING RESEARCH & DESIGN
	2017
关键词	Industrial alarm systems Variational directions Time gradients TRENDS OPTIMIZATION THRESHOLDS EXTRACTION DIAGNOSIS
DOI	10.1016/j.cherd.2017.04.011
英文摘要	Alarm systems are critically important for safety and efficiency of industrial plants, but are severely suffering from alarm overloading. This paper proposes a method to design a multi-variate alarm system based on variational directions of involved process variables, in order to alleviate the severity of alarm overloading. By using adaptive time scales, time gradients of signals are extracted to calculate variational directions in an online manner. Adaptive time scales are determined from a function between time scales and volatilities of process variables. Alarms arise at the moment that a nominal relationship of variational directions among process variables is invalidated. Numerical and industrial examples illustrate the effectiveness of the proposed method. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [61433001]; Taishan Scholar Project of Shandong Province of China; SCI(E); ARTICLE; 11-21; 122
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473049]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Kuang,Wang, Jiandong. Design of multivariate alarm systems based on online calculation of variational directions[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2017.
APA	Chen, Kuang,&Wang, Jiandong.(2017).Design of multivariate alarm systems based on online calculation of variational directions.CHEMICAL ENGINEERING RESEARCH & DESIGN.
MLA	Chen, Kuang,et al."Design of multivariate alarm systems based on online calculation of variational directions".CHEMICAL ENGINEERING RESEARCH & DESIGN (2017).

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