Upload
bona
View
24
Download
1
Tags:
Embed Size (px)
DESCRIPTION
Motivation. In 2020, 85% of offshore wind turbine installations will be larger than 5 MW. BARD 5MW. Global Offshore Wind Energy Markets and Strategies,2009. Wind Turbines: Constantly Growing. How big? UpWind Project: A 20 MW Wind Turbine is Feasible. www.upwind.eu. Superconducting Machines. - PowerPoint PPT Presentation
Citation preview
Motivation
BARD 5MWGlobal Offshore Wind Energy Markets and Strategies,2009
In 2020, 85% of offshore wind turbine installations will be larger than 5 MW
Wind Turbines: Constantly Growing How big?
UpWind Project: A 20 MW Wind Turbine is Feasible
www.upwind.eu
Superconducting Machines
Courtesy of Siemens, Converteam (ALSTOM)
Siemens: 400 kW
Converteam (ALSTOM): 5 MW HTS
Power Applications : Electrical Machines
36.5 MW, 120 rpm (U.S. Navy, AMSC)
Courtesy of AMSC
Direct-Drive SolutionsEnercon4.5 MW, 13 rpm220 tonnes
Harakosan 1.5MW,18 rpm,47 tonnes
AMSC, 36.5MW, 120rpm, 75 tonnes
(*) D. Bang et.al. “Review of Generator Systems for Direct-Drive Wind Turbines,” 2008,
All data available at goo.gl/ZZivv
Reliability of Wind Turbines
Hahn, B., & Durstewitz, M. (2007). Wind Energy-Reliability of Wind Turbines.
~1MW, 1500 onshore turbines
Reliability?
Cooling System Cryogenic Couplers Electric Brushes Transient torques on
SC Demagnetization for
Bulk SC AC losses on SC wire
Issues with Superconducting GeneratorsSeaTitan
AMSC, 10 MW, 10 rpm
Direct-drive superconducting generator
Transverse Flux HTSG
Pros Single Stationary SC Coil No Brushes No Cryogenic Coupler Bidirectional flux High Torque Density
Cons Magnetic Attraction
Forces 3D Flux (Soft magnetic
composites needed)
Transverse Flux HTSG
Electromagnetic Modelling
Main Specifications
Power Output
70 kW
Speed 100 rpm
Diameter 1.3 m
Axial Length 0.5 m
SC Wire Current
216 A
SC Wire Length
880 m
Next Stage: Linear Prototype
Next Stage: Linear Prototype
THANKS