Haliade 150-6MW Experiencia funcional con la nueva generación offshore

Transcription

1 Haliade 150-6MW Experiencia funcional con la nueva generación offshore Bilbao Marine Energy week 2013 Daniel Castell, Offshore Wind Platform Director 17/04/2013

2 Alstom Group Three main activities in four Sectors Thermal Power 8.7 bn Grid 4 bn Transport 5.2 bn Organisation as of 4 July 2011 Renewable Power 2 bn Total sales 2011/12: 19.9 billion

3 Haliade 150-6MW First new generation offshore wind turbine Haliade 150 Robust Simple Efficient First onshore installation First offshore installation Pre-series Series French offshore projects start

4 Haliade 150-6MW : Onshore prototype update Installed in March 2012 First Kw in June 2012 Power curve measurements underway Image courtesy of LM Wind Power Type certificate by end of 2013

5 Haliade 150-6MW : Offshore prototype update Blades loaded and delivered as planned Jacket ready to be offloaded Piling already installed Nacelle shipped to logistic hub Installation in the coming weeks, First kw in summer 2013

6 Haliade 150-6MW major design choices targeting to reduce wind offshore CoE 1. Drive Train 2. Rotor diameter 3. Power rating Direct Drive decision driven by reliability

7 Direct drive : a natural evolution to survive the offshore environment Design Manufacturing Installation Commissioning Operation & Maintenance OEM Exposure CLIENT Exposure RISK DIRECT DRIVE GEARBOX Direct Drive eliminates hidden costs and risks for the client

8 Theoretical gearbox reliability Independent Reliawind study : even best theoretical design gearbox designs do not go below 6.8% failure rate per year (from Smolders, Long, Feng, Tavner-EWEC2010) Translates into 136% replacement or retrofit over 20 years Gearboxes are likely to face at least one replacement over 20 years

9 Net Present Value of costs associated to a geared 6MW Turbine Considering one gearbox change over 20 years 2 campaigns of 50% of gearbox replacement around WF midlife Assuming perfect planning of gearbox repairs (predictive condition monitoring avoiding unscheduled downtime) Extra preventive maintenance for lubrication and oil changes NPV of Gearbox specific costs (Alstom estimate) k estimated lifetime extra costs for a 6MW geared turbine

10 Haliade 150-6MW Failure tolerance for continuous production A single coil or magnet failure in the generator does not affect power output perceptibly 3 independent generation and conversion lines ensure uninterrupted operations A ring topology maintains communications even with an isolated cable fault CMS SCADA Software-controlled de-rating strategies guarantee operation in the event of faults in the power line or cooling systems Designed to maintain high level of production in case of partial failure

11 Haliade 150-6MW Robust - ALSTOM PURE TORQUE Two solid bearings transmit main bending loads safely to the tower (red arrows), while an elastic coupling ensures the generator rotor receives only PURE TORQUE (green arrows) Separation between the main rotor and the generator rotor to protect the drive train and increase reliability

12 Generator validation measurements Courtesy of GE Power Conversion Back to Back test of the generator Field testing in onshore prototype Thorough testing confirming design targets are achieved

13 First operational results Airgap stability, real operation at 6MW Generator schematic (real proportions) AirGap variation 1:1 Proportion ALSTOM PURE TORQUE delivering expected AirGap and efficiency

14 First operational results Airgap stability, real operation at 6MW Prototype AirGap variation Alarm limit Stator limit Zoom In AirGap Area Approx x 1000 ALSTOM PURE TORQUE successfully maintains maximum efficiency

15 First operational results Airgap stability, real operation at 6MW Prototype AirGap variation Back to Back AirGap variation Alarm limit Stator limit Zoom In AirGap Area Approx x 1000 ALSTOM PURE TORQUE successfully maintains maximum efficiency

16 Haliade 150-6MW : a natural selection to thrive offshore A working product with a consistent roadmap A direct drive to avoid hidden costs of 500k minimum for a 6MW machine and one gearbox replacement First results matching or exceeding design expectations

17 Thank you for your attention!