Fuzzy maintenance costs of a wind turbine pitch control device

Mariana Carvalho

Portugal

Polytechnic Institute of Cávado and Ave

Eusébio Nunes

Portugal

University of Minho

José Telhada

Portugal

University of Minho

Submitted: 2014-10-16

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Accepted: 2015-02-28

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Published: 2015-07-10

DOI: https://doi.org/10.4995/ijpme.2015.3318
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Keywords:

Wind turbine, Pitch Control, Maintenance cost, Fuzzy sets

Supporting agencies:

FEDER Funds by Programa Operacional Fatores de Competitividade – COMPETE and by National Funds by FCT – Fundação para a Ciência e Tecnologia

Project

FCOMP-01-0124-FEDER-022674.

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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