Fault detection and diagnosis within a wind turbine mechanical braking system using condition monitoring

Renewable energy sources have a key role to play in the global energy mix as a means of reducing the impact of energy production on climate change. Wind energy is the most developed of all renewable energy technologies with more than 200 GW of globally installed capacity as of 2011. Analyses of wind...

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Bibliographic Details
Published in:Renewable energy 2012-11, Vol.47, p.175-182
Main Authors: Entezami, M., Hillmansen, S., Weston, P., Papaelias, M.Ph
Format: Article
Language:English
Subjects:
Applied sciences
assets
Brake system
Braking
climate change
Condition monitoring
Cost analysis
Current
electric power
Energy
Exact sciences and technology
farm operators
Fault detection
Maintenance
Modelling
monitoring
Natural energy
Renewable energy
Voltage
Wind energy
Wind power
Wind turbine
Wind turbines
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Summary:Renewable energy sources have a key role to play in the global energy mix as a means of reducing the impact of energy production on climate change. Wind energy is the most developed of all renewable energy technologies with more than 200 GW of globally installed capacity as of 2011. Analyses of wind farm maintenance costs show that up to 40% of the outlay is related to unexpected component failures that lead to costly unscheduled amendments. Wind farm operators are constantly looking for new technological developments in condition monitoring that can contribute to the minimisation of wind turbine maintenance expenditure. Early fault detection through condition monitoring can help prevent major breakdowns as well as significantly decrease associated costs. Moreover it enables the optimisation of maintenance schedules, reduces downtime, increases asset availability and enhances safety and operational reliability. Faults in the braking system are of particularly concern since they can result in catastrophic failure of the wind turbine. The present study investigates online condition monitoring based on voltages and currents for mechanical wind turbine brake system fault diagnosis. ► Customised CMS for wind turbine braking systems has been built and evaluated. ► Experiments coupled with modelling. ► System can be applied for condition monitoring of other components. ► Improved maintenance scheduling made possible. ► Risk of catastrophic failure due to braking system malfunction reduced.
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2012.04.031