Condition based maintenance for offshore wind turbines: the effects of false alarms from condition monitoring systems

Allan May, David McMillan

Research output: Contribution to conferencePaper

Abstract

As wind turbines increase in size and move offshore, operations and maintenance procedures need to be optimised to increase reliability, safety and maximise cost effectiveness. The practice of installing condition monitoring systems to allow the real time monitoring of assets as a means to achieve these goals is becoming more wide-spread. This allows operators to adopt a condition based maintenance approach that theoretically allows reduced costs over both preventive and corrective maintenance strategies. There have been several studies into the possible benefits and cost advantages of using a condition based maintenance strategy. However, few have examined the implications of false alarms. Investigating false alarms or ignoring false positives in a remote offshore environment will incur costs that may alter the cost benefit of condition monitoring systems.

Probabilistic models are used in the paper to determine the possible benefits of using condition monitoring systems and the effect that false positives and negatives have on the reliability of the system. The methods used include Markov chains, Monte-Carlo simulations and time-series modelling.
LanguageEnglish
Publication statusPublished - 29 Sep 2013
EventESREL 2013 - Amsterdam, Netherlands
Duration: 30 Sep 2013 → …

Conference

ConferenceESREL 2013
CountryNetherlands
CityAmsterdam
Period30/09/13 → …

Fingerprint

Offshore wind turbines
Condition monitoring
Costs
Cost effectiveness
Wind turbines
Markov processes
Time series
Monitoring

Keywords

  • condition monitoring systems
  • wind turbines
  • condition based maintenance

Cite this

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Condition based maintenance for offshore wind turbines : the effects of false alarms from condition monitoring systems. / May, Allan; McMillan, David.

2013. Paper presented at ESREL 2013, Amsterdam, Netherlands.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Condition based maintenance for offshore wind turbines

T2 - the effects of false alarms from condition monitoring systems

AU - May, Allan

AU - McMillan, David

PY - 2013/9/29

Y1 - 2013/9/29

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AB - As wind turbines increase in size and move offshore, operations and maintenance procedures need to be optimised to increase reliability, safety and maximise cost effectiveness. The practice of installing condition monitoring systems to allow the real time monitoring of assets as a means to achieve these goals is becoming more wide-spread. This allows operators to adopt a condition based maintenance approach that theoretically allows reduced costs over both preventive and corrective maintenance strategies. There have been several studies into the possible benefits and cost advantages of using a condition based maintenance strategy. However, few have examined the implications of false alarms. Investigating false alarms or ignoring false positives in a remote offshore environment will incur costs that may alter the cost benefit of condition monitoring systems.Probabilistic models are used in the paper to determine the possible benefits of using condition monitoring systems and the effect that false positives and negatives have on the reliability of the system. The methods used include Markov chains, Monte-Carlo simulations and time-series modelling.

KW - condition monitoring systems

KW - wind turbines

KW - condition based maintenance

UR - http://www.esrel2013.nl/

M3 - Paper

ER -