Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32016
Title: Reliability evaluations of railway power supplies by fault-tree analysis
Authors: Chen, SK
Ho, TK
Mao, BH
Issue Date: 2007
Publisher: Institution Engineering Technology-Iet
Source: IET electric power applications, 2007, v. 1, no. 2, p. 161-172 How to cite?
Journal: IET Electric Power Applications 
Abstract: 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.
URI: http://hdl.handle.net/10397/32016
DOI: 10.1049/iet-epa:20060244
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