hydraulic soft yaw system
Post on 22-Feb-2016
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DESCRIPTION
TRANSCRIPT
Hydraulic Soft Yaw System
LOAD REDUCTION AND PROTOTYPE RESULTS
S. Stubkier, H. C. Pedersen and K. Markussen
• Introduction• System description• Simulation setup• Load reduction• Results of controlled slippage• Test rig presentation• Measurement results• Conclusion and Future prospects
Agenda
• Same load on all pinions at all times– Backlash has no influence on loading
• Well defined extreme slippage• Fatigue load reduction• Ultimate load reduction• Lower tear and wear – increased yaw activity• Higher power to volume ratio
Main benefits of hydraulic yaw
System Description
Klik på ikonet for at tilføje et billede
Angl
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System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Klik på ikonet for at tilføje et billede
Angl
ePr
essu
re
System Description
Possibility of .dll or .mex file interface to your turbine code with full model of hydraulic yaw system.
Simulation Setup
Load Reduction
Controlled Slippage
Controlled Slippage
8 electrical servo drives;Speed, torque and position
control; 22.7 Nm
8 hydraulic gear pumps/motors; 32 cc, T-max 164 Nm8 gears for electrical drives;
r=10348 gears for hydraulic drives;
r=323 4x12.5 liters High Performance Nitrogen Accumulators
Torque and Speed transducers
Temperatures and pressure measurements
Control and Power PackSpecial designed HWP Manifolds
Measurements from Test Rig
• Little to no influence
Influence on energy production
• Off grid operation– Self yaw by wind load– Energy harvesting from main shaft– Down wind stable turbine
• Fault detection– Simple pressure measurements– Frequency analysis
• Lower COE
Features of hydraulic yaw system
• Advantages– Same load on all pinions at all times– Backlash has no influence on loading– Well defined extreme slippage– Fatigue load reduction– Ultimate load reduction– Lower tear and wear – increased yaw activity
Conclusion
Thank you for your attention
Søren Stubkiersst@hydratech-industries.com
Conclusion
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