EWEC 2007 May 7-10, Milan
CT3: Downtime Analysis for Informed Decision Making
Stuart Hall M.Eng., M.Sc. Director
Graeme Hawker M.A., M.Sc.Operational Analyst
Neil Douglas B.Sc., M.Sc. Associate Director (Technical)
The Natural Power Consultants Ltd.
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www.naturalpower.com
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Introduction
• Why is a system for downtime analysis necessary?
• How is downtime analysis achieved?
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10 minuteturbine data
Alarm / Eventlogs
Work controldata
ReferenceAnemometry
Downtime event listby category
OperatorPost - Processing
SystemPre - Processing
Site Data
Lost generation bydowntime event
Operational power curves by sector
SCADA
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Event log
DT event
Alarm logSCADA data
Work control data
DT editor
Downtime Analysis Interface – Inputs and Outputs
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Lost GenerationMeasured power performance by sector
Extrapolate generation during downtime event Adjust for reduced wakes
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Benefits of DTA• Identify trends
• Cost – Benefit analysis
• Optimisation of management regime
• SCADA independent calculation of key performance indicators
• The owner is in control of the assets
Informed Decision Making
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Stuart Hall [email protected]
Graeme Hawker [email protected]
Neil Douglas [email protected]
Thank you for your attention
The Greenhouse
Natural Power HQ, Scotland
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