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Blade Maintenance: Observations from the Field and Practical Solutions

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Wind turbines and their blades represent a substantial investment for any renewable energy project. In this webinar, learn how our experienced blade service technicians use field knowledge to combat issues such as blade erosion and lightning damage.
We will provide you with the knowledge of how a comprehensive blade inspection and repair plan can increase the lifespan of your project. By utilizing a multi-tiered blade inspection approach customers can select the service level that best suits their individual project’s needs, helping owners overcome common blade issues and increase project output.

Watch the webinar: http://www.windpowerengineering.com/webinars/blade-maintenance-observations-from-the-field/

Veröffentlicht in: Ingenieurwesen
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Blade Maintenance: Observations from the Field and Practical Solutions

  1. 1. #WindWebinar
  2. 2. #WindWebinar q  This webinar will be available afterwards at www.windpowerengineering.com & email q  Q&A at the end of the presentation q  Hashtag for this webinar: #WindWebinar Before We Start
  3. 3. #WindWebinar Introducing the Speakers MODERATOR FEATURED SPEAKER FEATURED SPEAKER FEATURED SPEAKER Michelle Froese Senior Editor Windpower Engineering & Development Kelly Miller Composite Report Manager EDF Renewable Services Matt Sigala Area Technical Specialist EDF Renewable Services Jon Salmon Senior Technical Services Manager EDF Renewable Services
  4. 4. #WindWebinar BLADE MAINTENANCE: observations from the field and practical solutions Jon Salmon, P.E., Senior Technical Services Manager Kelly Miller, Composite Repair Manager Matt Sigala, Composite Specialist
  5. 5. #WindWebinar EDF Renewable Services 5 6.81 8.05 5.91 4.1 1.88 1.34 1.78 1.16 0.75 0.72 0.73 7.26 8.05 5.91 4.38 2.64 2.44 3.11 1.85 1.86 1.08 1.1 0 2 4 6 8 10 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Safety Performance 2005-2015 DART TRIR TRIR: Total Recordable Incident Rate DART: Days Away, Restricted, or Transferred 30 years of expertise in renewable energy industry Largest third-party provider of Operation and Maintenance (O&M) services in North America Offer O&M, BOP, scheduled and unscheduled maintenance, blade inspections, blade repair and asset management 410 technicians and supervisors Solutions customized to your specific projects needs Company culture focused on safety
  6. 6. #WindWebinar Key Figures Across North America 6 10,723 7,782 6,703 4,094 3,840 0 2,000 4,000 6,000 8,000 10,000 12,000 Operations & Maintenance Developed Put Into Service Installed Capacity Divested EDF EN North America Activity December 31, 2015 MW
  7. 7. #WindWebinar Blade Trends 3/22/16 Presentation Title 7 Larger rotors and longer, heavier blades Increased structural loading Higher maintenance costs Turbine power ratings are increasing Wind cost of energy Least amount of blade material Lower design safety factors Higher maintenanc e costs
  8. 8. #WindWebinar Blade Trends 3/22/16 Presentation Title 8 Growing awareness of blade problems Aging of flexible megawatt blades The number of owners seeking blade maintenance services is increasing due to:
  9. 9. #WindWebinar Why is Blade Maintenance Important? 3/22/16 Presentation Title 9 Preserve the blade structure Retain airfoil shape Reduce AEP losses Repair costs increase non-linearly as degradation progresses Risk of complete blade loss
  10. 10. #WindWebinar Maintenance Factors 3/22/16 Presentation Title 10 Airborne erosive particles •  Water •  Ice •  Sand •  Dust Lightning frequency and intensity Moisture ingestion Freeze and thaw cycles Blade design and manufacture • Material erosion properties • Leading edge protection • Adhesive properties and processing • Workmanship •  Blade degradation rate varies greatly site to site •  Some factors to consider at your site:
  11. 11. #WindWebinar Things to Consider •  Established blade and site maintenance plan •  Perform inspections early and often •  Owner budget •  Provider capabilities: 3/22/16 Presentation Title 11 Inspection techniques Database to organize collected blade data Maintenance and repair planning
  12. 12. #WindWebinar Things to Consider 3/22/16 Presentation Title 12 Modes of Inspection •  Visual inspections •  Binoculars •  Cameras •  Technicians on the blade •  Drones Ability to see fine details •  High image resolution •  Image effects: contrast, brightness •  Zoom ability Cost and productivity •  Inspection •  Data Management •  Reporting
  13. 13. #WindWebinar Inspection Approach 3/22/16 EDF RS Blade Services 13 •  The industry has multiple different inspection techniques putting the customer in control of their solution •  Blade maintenance needs can change depending on: Turbine Age (construction vs. 10 years in) Condition of Turbines Climate Customer Budget Blade Design
  14. 14. #WindWebinar 3/22/16 Presentation Title 14 Basic Visual Inspection •  Visual inspection typically using binoculars •  Technicians inspect each blade noting damage •  Lowest cost option and often included with O&M contract Photographic Inspection •  Inspection with a camera, typically including a telephoto lens •  Technicians inspect each blade and are able to show owners damage through photographs Technicians on the blade •  Technicians are secured to the blade using ropes, cranes or a platform •  Visually inspect and take photos of blade noting any damage
  15. 15. #WindWebinar 3/22/16 Presentation Title 15 UAV Inspection •  Inspection with an unmanned aerial vehicle (UAV) or a drone •  UAV takes up close photos or videos of each blade •  Technicians then analyze data to see damage Mosaic Image Mapping •  Inspection performed with a high powered telephoto lens •  Photos are stitched together to form a mosaic image map •  Owners are able to see each blade in single photograph
  16. 16. #WindWebinar Data Management Reporting Capabilities 3/22/16 Presentation Title 16 Basic Reporting •  May include photographs •  Detail recommended repairs •  Paper or email form •  Difficult to show yearly damage progression Database •  Central location to store reports from year to year •  Difficult to note damage progression •  Includes photos of every blade •  Stored online or on computer Website •  Includes photos and may include mosaic image map photos •  Online with 24/7 access •  Easily see damage progression from year to year •  Ability to filter and search through photos and blades
  17. 17. #WindWebinar Lightning Strikes Leading Edge Erosion Laminate Delamination Moisture Ingestion Freeze & Thaw Cycling Manufacturer Defects Common Blade Failures 3/22/16 EDF RS Blade Services 17
  18. 18. #WindWebinar 3/22/16 EDF RS Blade Services 18 Lightning Damage Repair Progression Removal of gel coat and NDT Damage prep for repair Repair laminate cured Gel coat / LEP applied
  19. 19. #WindWebinar Lightning Damage Repair 3/22/16 EDF RS Blade Services 19 Specially trained technicians test and repair Lightning Protection Systems Repair damaged laminate Repair and replace lightning protection receptors Delamination Disbond
  20. 20. #WindWebinar Leading Edge Erosion Control and Repair 3/22/16 EDF Blade Services 20 Specially trained blade repair technicians inspect and repair erosion damage Install and replace leading edge protection Bond line repairs Leading edge preventive maintenance
  21. 21. #WindWebinar 3/22/16 EDF RS Blade Services 21 Costs of Not Repairing A small problem one year can become a big problem the next Leading edge erosion left untreated is more expensive to fix in the long term Unrepaired damage can impact your plant performance
  22. 22. #WindWebinar 3/22/16 EDF RS Blade Services 22 Costs of Not Repairing •  Over time, blade repair costs increase •  Repair costs increase non-linearly as degradation progresses •  Erosion can cause significant AEP reductions *Data courtesy of 3M Pits and gouges reduce AEP from 4% up to 10% Delamination reduces AEP up to 20%
  23. 23. #WindWebinar Questions? MODERATOR FEATURED SPEAKER FEATURED SPEAKER FEATURED SPEAKER Michelle Froese Senior Editor Windpower Engineering & Development mfroese@wtwhmedia.com Kelly Miller Composite Report Manager EDF Renewable Services Kelly.miller@edf-re.com Matt Sigala Area Technical Specialist EDF Renewable Services Matthew.sigala@edf-re.com Jon Salmon Senior Technical Services Manager EDF Renewable Services Jon.salmon@edf-re.com
  24. 24. #WindWebinar q  This webinar will be available at www.windpowerengineering.com & email q  Tweet with hashtag #WindWebinar q  Connect with Windpower Engineering & Development q  Discuss this on EngineeringExchange.com Don’t Forget!
  25. 25. #WindWebinar

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