Main causes of long-standing alarms and their removal by dynamic state-based alarm systems

被引：11

作者：

Wang, Jiandong ^{[1
]}

Chen, Tongwen ^{[2
]}

机构：

[1] Peking Univ, Coll Engn, Beijing, Peoples R China

[2] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB, Canada

来源：

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES | 2016年 / 43卷

基金：

加拿大自然科学与工程研究理事会; 中国国家自然科学基金;

关键词：

Industrial alarm systems; Long-standing alarms; Dynamic state-based alarm systems; Nuisance alarms; MANAGEMENT; INCIDENTS;

D O I：

10.1016/j.jlp.2016.05.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Long-standing alarms are those in the alarm state continuously for a long period of time. Some long-standing alarms belong to nuisance alarms, playing a detrimental role to the performance of industrial alarm systems, and hence they should be removed. The paper analyzes the main causes leading to long-standing alarms as nuisance ones; industrial examples from a large-scale thermal power plant are provided as supportive evidences of the main causes. A dynamic state-based alarm system is designed to remove long-standing alarms caused by the inconsistency between the alarm design and discrete-valued operating states. The design is based on two rules formulated to select state variables and a novel alarm generation mechanism to generate state-based alarm variables. Industrial case studies illustrate the effectiveness of the dynamic state-based alarm system in significantly reducing the severity of long-standing alarms. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：106 / 119

页数：14

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