1 / 20

Agenda

Technology and Operational Results of REpower 6M Jens Goesswein Head of Product Management, Business Unit Offshore EOW 2009 Stockholm, 2009-09-15. Agenda. Technology 6M. Operational Results. Projects & Lessons Learned. Key Data. Rated power: 6.150 kW Rotor diameter: 126 m Masses:

lee-rocha
Download Presentation

Agenda

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Technology and Operational Results of REpower 6MJens GoessweinHead of Product Management,Business Unit OffshoreEOW 2009Stockholm, 2009-09-15

  2. Agenda Technology 6M Operational Results Projects & Lessons Learned

  3. Key Data • Rated power: 6.150 kW • Rotor diameter: 126 m • Masses: • Rotor: ~130 to. • Nacelle: ~330 to. • Tower (100 m HH onshore): ~433 to. • Tower (offshore, 65 m long): ~250 to. Design Parameters • Design wind speed: 10,5 m/s • Type Class IEC 1b & S-class GL Offshore TC I

  4. Major Changes 6M to 5M • Higher voltage of 6,6 kV (instead of 950 V) in generator stator • Water cooling of generator (air – water – air) • New gear box (higher torque) • Utilisation of REpower control system REguard Control B • Adaptation of transformer to the higher voltage and power • Optimization of the platform

  5. Mechanical System (identical / similar to 5M) Electrical single blade pitch Double bearing of rotor shaft Welded main- and generator frame 2-step planetary gear box with one spur wheel Yaw system with 8 drives and 8 active breaks

  6. Synchronizer with filter for harmonics Dry type transformer (30 kV or 33 kV) • Air to air cooling Electrical cabinets (UPS, Converter, Top Box) DFIG generator • 6 pole, 660 V / 6.6 kV) • Air / water / air cooling IGBT Converter (modular) • Water to air cooling Electrical System

  7. Onboard crane for O&M Helicopter hoist on top of nacelle Dehumidification of tower and nacelle Indirect ventilation through heat exchangers Automatic fire protection system CMS & Oil Particle Counter Enhanced corrosion protection Offshore Features (examples)

  8. Power Curve and Energy Yield Comparison

  9. Agenda Technology 6M Operational Results Projects & Lessons Learned

  10. 17 turbines up and running 9 onshore (Germany) 8 offshore (UK and Belgium) Total operating hours of the fleet: 171,020 (19.5 years) Average turbine life: ~ 14 months Average tech. availability in 2009: > 95-98% Track Record 5M (as of 30 Aug. 2009)

  11. Prototype Project • 3 x 6M: wind farm Ellhoeft / Westre • Location: Ellhoeft, Schleswig-Holstein • Customer: 220 private investorsfrom Germany and Denmark(Buergerwindpark / Cooperative) • Installation: Q1 / 2009 • Status: all 3 WEC in full operation

  12. Operational Experience (3 x 6M Prototypes) Operational data Energy yield Tech. availability April 2009 < 1 GWh commissioning May 2009 1.54 GWh commissioning June 2009 1.98 GWh 80% July 2009 1.40 GWh 86% August 2009 1.71 GWh 92% September 01.-13. 2009 98%

  13. Validation & Certification Measurements • Power Curve • Sound power level • Load measurements • Grid (with FRT & further tests) Certification • Type approval German DIBT • Type Certificate IEC • Certification GL Offshore

  14. Market Introduction 6M • Prototype: Q1 - 2009 • Initial batch: 2010 / 2011 • Offshore – Projects: from 2012

  15. Agenda Technology 6M Operational Results Projects & Lessons Learned

  16. Projects 5M and 6M

  17. Lessons Learned year: 1 2 3 Contract signing Installation of infrastructure Installation of WTG … please don‘t forget year 0 Take your time for proper planning, interface management, tower and foundation design and the reservation of suitable installation equipment. Compromise wins the trick Offshore is a risky business – there are always changes, delays and potential extra costs. No contract can allow for all of them – so you need compromises and project managers with the mandate to deal with them.

  18. Nordergruende Developer: Energiekontor AG Location: 15 km north-eastern off Wangerooge Number of turbines: 18 x REpower 5M Water depth: 4-14 m Ongoing & Planned Projects alpha ventus (2009): Developer: DOTI (Vattenfall, E.ON, EWE) Location: 45 km off the shore of Borkum No. of turbines: 6 x REpower 5M 6 x Multibrid M5000 Water depth: 26-30 m Status: installation in progress Source: www.alpha-ventus.de / www.energiekontor.de

  19. Ormonde Combined Wind & Gas Power Plant No. WTG: 30 x 5M Capacity: 150 MW Developer: Vattenfall (Eclipse) Water depth: 20 m Distance to shore: 10 km Project Schedule Contract signing: 2009 Foundations & Grid: 2010 WTG: 2011 Commissioning: 2011 Source: www.vattenfall.com / http://seapower-generation.co.uk

  20. Many thanks for your interest!

More Related