文章基本信息

标题：Reliability Investigation of Series-Parallel and Components of Power System using Interval Type-2 Fuzzy Set Theory
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作者：Sharma Anurag ; Jha Manoj ; Qureshi M.F. 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：11
页码：17676
DOI：10.15680/IJIRSET.2014.0311082
出版社：S&S Publications
摘要：Fuzzy set based methods have been proved to be effective in handling many types of uncertainties indifferent fields, including reliability engineering. This paper presents a new approach on fuzzy type-2 reliability, basedon the use of type-2 FOU as membership function. Considering experts ideas and by asking operators linguisticvariables, a rule base is designed to determine the level of reliability of each component. The outputs of the presentedmodel are type-2 fuzzy sets representing the reliability levels of components. After determining the level of reliabilityof each component, the reliability of the composed system can be determined by using t-norm and s-norm functions.The system can be parallel, series, parallel- series or series-parallel.In the present paper the probabilistic consideration of basic events is replaced by possibilities, thereby leadingto fuzzy fault tree analysis. Triangular and trapezoidal type-2 fuzzy numbers are used to represent the failure possibilityof basic events. The failure possibility of a basic event will be assigned more than one type-2 fuzzy numbers bydifferent experts under various operating conditions. The proposed techniques are discussed and illustrated by taking anexample of a Thermal power plant.
关键词：Fuzzy reliability of series parallel components; interval type-2 Fuzzy sets; Fuzzy Fault tree analysis;(FTA).