Economic analysis of condition monitoring systems for offshore wind turbine sub-systems

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May, Allan and McMillan, David and Thöns, Sebastian (2015) Economic analysis of condition monitoring systems for offshore wind turbine sub-systems. IET Renewable Power Generation. ISSN 1752-1416 (https://doi.org/10.1049/iet-rpg.2015.0019)

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Abstract

The use of condition monitoring systems on offshore wind turbines has increased dramatically in recent times. However, their use is mostly restricted to vibration based monitoring systems for the gearbox, generator and drive train. A survey of commercially available condition monitoring systems and their associated costs has been completed for the blades, drive train, tower and foundation. This paper considers what value can be obtained from integrating these additional systems into the maintenance plan. This is achieved by running simulations on an operations and maintenance model for a wind farm over a 20 year life cycle. The model uses Hidden Markov Models to represent both the actual system state and the observed condition monitoring state. The CM systems are modelled to include reduced failure types, false alarms, detection rates and 6 month failure warnings. The costs for system failures are derived, as are possible reductions in costs due to early detection. The detection capabilities of the CM systems are investigated and the effects on operational costs are examined. Likewise, the number of failures detected 6 months in advance by the CM systems is modified and the costs reported.

ORCID iDs

May, Allan ORCID logoORCID: https://orcid.org/0000-0001-5900-8179, McMillan, David ORCID logoORCID: https://orcid.org/0000-0003-3030-4702 and Thöns, Sebastian;
  • Item type:Article
    ID code:54611
    Dates:
    Date
    Event
    2015
    Published
    12 October 2015
    Published Online
    5 September 2015
    Accepted
    Notes:This paper is a postprint of a paper submitted to and accepted for publication in IET Renewable Power Generation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:19 Oct 2015 10:18
    Last modified:16 Dec 2024 15:24
    URI:https://strathprints.strath.ac.uk/id/eprint/54611
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