An online method for detection and reduction of chattering alarms due to   oscillation

doi:10.1016/j.compchemeng.2013.03.025

CORC > 北京大学 > 工学院

	An online method for detection and reduction of chattering alarms due to oscillation
	Wang, Jiandong ; Chen, Tongwen
刊名	计算机与化工
	2013
关键词	Process safety Chattering alarms Oscillation Alarm systems CONTROL LOOPS DIAGNOSIS
DOI	10.1016/j.compchemeng.2013.03.025
英文摘要	Chattering alarms, which repeatedly and rapidly make transitions between alarm and normal states in a short time period, are the most common form of nuisance alarms that severely degrade the performance of alarm systems for industrial plants. One reason for chattering alarms is the presence of oscillation in process signals. The paper proposes an online method to promptly detect the chattering alarms due to oscillation and to effectively reduce the number of chattering alarms. In particular, a revised chattering index is proposed to quantify the level of chattering alarms; the discrete cosine transform-based method is used to detect the presence of oscillation; two mechanisms by adjusting the alarm trippoint and using a delay timer are exploited to reduce the number of chattering alarms. An industrial case study is provided to illustrate the effectiveness of the proposed method. (C) 2013 Elsevier Ltd. All rights reserved.; Computer Science, Interdisciplinary Applications; Engineering, Chemical; SCI(E); EI; 4; ARTICLE; 140-150; 54
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154455]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Jiandong,Chen, Tongwen. An online method for detection and reduction of chattering alarms due to oscillation[J]. 计算机与化工,2013.
APA	Wang, Jiandong,&Chen, Tongwen.(2013).An online method for detection and reduction of chattering alarms due to oscillation.计算机与化工.
MLA	Wang, Jiandong,et al."An online method for detection and reduction of chattering alarms due to oscillation".计算机与化工 (2013).