Journal article
Feasibility study of 5MW superconducting wind turbine generator
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Electric Components, Department of Electrical Engineering, Technical University of Denmark4
Department of Electrical Engineering, Technical University of Denmark5
Slovak Academy of Sciences6
Dynamical systems, Department of Mathematics, Technical University of Denmark7
Department of Mathematics, Technical University of Denmark8
Electric Energy Systems, Department of Electrical Engineering, Technical University of Denmark9
The feasibility of installing a direct drive superconducting generator in the 5MW reference offshore wind turbine of the National Renewable Energy Laboratory (NREL) has been examined. The engineering current densities Je obtained in a series of race track coils have been combined with magnetization measurements to estimate the properties of suitable field coils for a synchronous generator, which is more light weight than the conventional used combination of a gear box and a fast rotating generator.
An analytical model and finite element simulations have been used to estimate the active mass of generators with varying number of poles. A 24 pole machine with an outer diameter of 4.2m and active length and mass of 1.2m and 34 tons is suggested possible, if a Je=300A/mm2 can be obtained in B=4T pointing to an operation temperature around 40K.
| Language: | English |
|---|---|
| Year: | 2011 |
| Pages: | 1464-1469 |
| Proceedings: | The 23rd International Symposium on Superconductivity |
| ISSN: | 18732143 and 09214534 |
| Types: | Journal article |
| DOI: | 10.1016/j.physc.2011.05.217 |
| ORCIDs: | Abrahamsen, Asger Bech , Mijatovic, Nenad and Østergaard, Jacob |
