Your SlideShare is downloading. ×
PHM Application for Utility-scale Wind Turbines
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

PHM Application for Utility-scale Wind Turbines

489
views

Published on

Performance Health Monitoring application for utility-scale wind turbines presentation at IEEE conference by Brogan Morton.

Performance Health Monitoring application for utility-scale wind turbines presentation at IEEE conference by Brogan Morton.

Published in: Technology, Business

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
489
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
12
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • Example of the maintenance strategies is changing the oil in your car:Reactive – this is driving your car off the lot and never changing the oil until the engine seizes. PROS: Low effort, minimum amount of maintance CONS: Lot of collateral damage, increased downtimePreventive – this is how most people change their oil, every 3000 miles. PROS: Fewer failures CONS: parts ‘waste’, more planned maintenance, still get some ‘early-life’ failuresPredictive – many vehicles now have oil life sensors that tell you when to change the oil. PROS: Most efficient methods, highest up-time CONS: Level of effort required to know component condition
  • O&M costs are 35%-45% of a wind farms operating budget when the turbines come off warranty.Minimizing these cost directly affects the bottom line of the wind farmThis data is from one of the top 10 wind asset owners in the US
  • Transcript

    • 1. PHM Application for Utility-scale Wind Turbines Brogan Morton, NRG Systems
    • 2. Presentation Overview• Why Health Monitoring for Wind Turbines?• Operational Cost Drivers• CBM/PHM Challenges – System Considerations – Operating Conditions – Diagnosis / Knowledge Creation
    • 3. Why Health Monitoring?• Not driven by safety or operational effectiveness• It’s about the bottom line – Cost Avoidance • Maintenance Cost Optimization – $150k gearbox + $100k crane call – $30k-$50k uptower replacement • Prevent failures by finding failure drivers – misalignment, imbalance, etc.
    • 4. Why Prognostics?
    • 5. Operational Cost Drivers 35% to 45% of OPEX
    • 6. Maintenance Drivers Drivetrain causes 50% of downtime
    • 7. Typical Drivetrain Layout Doubly-Fed Induction Generator 3 Stage Gearbox - (900-1600 RPM) 1 planetary / 2 helical (80:1 - 100:1 ratio)Hub & Rotor(12-20 RPM)
    • 8. Typical Drivetrain Layout Generator High Speed Shaft 3-stage Gearbox MainBearing Int. Speed Shaft Main Shaft Low Speed Shaft •17 Bearings •9 Gears •8 Shaft
    • 9. Systems Considerations• Distributed power source – Goshen North ~ 124.5MW using 83 1.5MW turbines – 11,000 acres, 28 miles of access roads
    • 10. Systems Considerations• Turbines are difficult to access – Climb an 80m (262 ft) tower then hoist tools – Hand-held CMS incurs a large labor cost
    • 11. System Considerations• IT Infrastructure – Down-tower connection – Local network infrastructure – NERC Critical Infrastructure Protection (CIP) – Operation network security (AIC vs CIA)
    • 12. Operating Conditions• Large variations in Main Rotor Speed speed – DFIG – Tower Shadow – Wind Shear Profile• Large variations in torque/power – 10% - 105% of rated
    • 13. Knowledge CreationManually translating data into a diagnosis for every turbine has a large cost!Which is most useful to an operator?• 01000011 01101000 01100001 01101110 01100111 01100101 00100000 01101101 01100001 01101001 01101110 00100000 01100010 01100101 01100001 01110010 01101001 01101110 01100111• 43 68 61 6e 67 65 20 6d 61 69 6e 20 62 65 61 72 69 6e 67 0d 0a• Change main bearing