Fuzzy maintenance costs of a wind turbine pitch control device

By Carvalho, Mariana; Nunes, Eusebio; Telhada, Jose

International Journal of Production Management and Engineering

2015

Abstract

This paper deals with the problem of estimation maintenance costs for the case of the pitch controls system of wind farms turbines. Previous investigations have estimated these costs as (traditional) “crisp” values, simply ignoring the uncertainty nature of data and information available. This paper purposes an extended version of the estimation model by making use of the Fuzzy Set Theory. The results alert decision-makers to consequent uncertainty of the estimations along with their overall level, thus improving the information given to the mainte-nance support system.

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