Journal
WIND ENGINEERING
Volume 30, Issue 6, Pages 471-486Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1260/030952406779994141
Keywords
Wind turbines; Reliability-Centred Maintenance; Failure Mode and Effect Analysis; Asset Life-cycle Analysis; Condition-Based Maintenance
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Common maintenance strategies applied to wind turbines include 'Time- Based' which involves carrying out maintenance tasks at predetermined regular-intervals and 'FailureBased' which entails using a wind turbine until it fails. However, the consequence of failure of critical components limits the adequacy of these strategies to support the current commercial drivers of the wind industry. Reliability-Centred Maintenance (RCM) is a technique used mostly to select appropriate maintenance strategies for physical assets. In this paper, a hybrid of an RCM approach and Asset Life-Cycle Analysis technique is applied to Horizontal-Axis Wind Turbines to identify possible failure modes, causes and the resultant effects on system operation. The failure consequences of critical components are evaluated and expressed in financial terms. Suitable Condition-Based Maintenance activities are identified and assessed over the life-cycle of wind turbines to maximise the return on investment in wind farms.
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