Reliability evaluations of railway power supplies by fault-tree analysis

Chen, S. K., Ho, T. K., & Mao, B. H. (2007) Reliability evaluations of railway power supplies by fault-tree analysis. IET Electric Power Applications, 1(2), p. 161.

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High reliability of railway power systems is one of the essential criteria to ensure quality and cost-effectiveness of railway services. Evaluation of reliability at system level is essential for not only scheduling maintenance activities, but also identifying reliability-critical components. Various methods to compute reliability on individual components or regularly structured systems have been developed and proven to be effective. However, they are not adequate for evaluating complicated systems with numerous interconnected components, such as railway power systems, and locating the reliability critical components. Fault tree analysis (FTA) integrates the reliability of individual components into the overall system reliability through quantitative evaluation and identifies the critical components by minimum cut sets and sensitivity analysis. The paper presents the reliability evaluation of railway power systems by FTA and investigates the impact of maintenance activities on overall reliability. The applicability of the proposed methods is illustrated by case studies in AC railways.

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ID Code: 38214
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Railway engineering, power feeding system, reliability-centred maintenance, fault tree analysis, reliability evaluation
DOI: 10.1049/iet-epa:20060244
ISSN: 1751-8679
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2007 The Institution of Engineering and Technology
Deposited On: 27 Oct 2010 22:30
Last Modified: 29 Feb 2012 14:19

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