Reliability Model and Sensitivity Analysis for Electrical/Electronic/Programmable Electronic Safety-Related Systems

被引：4

作者：

Torres, Esperanza S. ^{[1
]}

Sriramula, Srinivas ^{[1
]}

Celeita, David ^{[2
]}

Ramos, Gustavo ^{[3
]}

机构：

[1] Univ Aberdeen, Sch Engn, Aberdeen AB24 3UE, Scotland

[2] CentraleSupelec, Lab Genie Elect & Elect Paris, F-91190 Paris, France

[3] Univ Los Andes, Dept Elect & Elect Engn, Bogota 111711, Colombia

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2020年 / 56卷 / 04期

关键词：

Safety; Reliability; IEC Standards; Markov processes; Mathematical model; Industries; Functional safety; IEC; 61508; probability of failure on demand (PFD); reliability assessment; safety integrity level (SIL);

D O I：

10.1109/TIA.2020.2990583

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nowadays, different industries such as nuclear, automotive, process, chemical, and oil and gas industry must meet specific requirements in order to keep and reduce safety risks to as low as reasonably practicable level. As a result, the number of electrical/electronic/programmable electronic safety-related systems (E/E/PES) to control, prevent, and mitigate hazardous events has increased. Moreover, new guidelines and procedures have been developed to guarantee the availability and function of safety systems over their service life. Based on Markov processes, this article discusses a reliability model to assess the integrity and verify the design of E/E/PES safety-related systems. The average probability of failure on demand and safety integrity level are used to determine the reliability performance of an E/E/PES in a low-demand mode of operation in accordance with the functional safety principles of the IEC 61508 and IEC 61511 standards.

引用

页码：3422 / 3430

页数：9

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