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Energies 2018, 11(9), 2317; https://doi.org/10.3390/en11092317

Failure Modes, Effects and Criticality Analysis for Wind Turbines Considering Climatic Regions and Comparing Geared and Direct Drive Wind Turbines

1
Earth and Environmental Engineering Department, Columbia University, 116th St & Broadway, New York, NY 10027, USA
2
Fraunhofer Institute for Energy Economics and Energy System Technology—IEE, Königstor 59, 34119 Kassel, Germany
*
Author to whom correspondence should be addressed.
Received: 30 July 2018 / Revised: 19 August 2018 / Accepted: 27 August 2018 / Published: 3 September 2018
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Abstract

The wind industry is looking for ways to accurately predict reliability and availability of newly installed wind turbines. Failure modes, effects and criticality analysis (FMECA) is a technique utilized to determine the critical subsystems of wind turbines. There are several studies in the literature which have applied FMECA to wind turbines, but no studies so far have used it considering different weather conditions or climatic regions. Furthermore, different wind turbine design types have been analyzed applying FMECA either distinctively or combined, but no study so far has compared the FMECA results for geared and direct-drive wind turbines. We propose to fill these gaps by using Koppen-Geiger climatic regions and two different turbine models of direct-drive and geared-drive concepts. A case study is applied on German wind farms utilizing the Wind Measurement & Evaluation Programme (WMEP) database which contains wind turbine failure data collected between 1989 and 2008. This proposed methodology increases the accuracy of reliability and availability predictions and compares different wind turbine design types and eliminates underestimation of impacts of different weather conditions. View Full-Text
Keywords: reliability; FMEA; wind turbines; climatic conditions; wind turbine type reliability; FMEA; wind turbines; climatic conditions; wind turbine type
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Ozturk, S.; Fthenakis, V.; Faulstich, S. Failure Modes, Effects and Criticality Analysis for Wind Turbines Considering Climatic Regions and Comparing Geared and Direct Drive Wind Turbines. Energies 2018, 11, 2317.

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