Comparison of Levelized Cost of Energy of a 10 MW superconducting and magnetic pseudo direct drive generator targeted for the INNWIND.EU reference turbine

Abstract (2017)

Authors

Asger Bech Abrahamsen Technical University of Denmark
D. Liu DC systems, Energy conversion & Storage - EEMCS
R.E. .Clark Magnomatics
F. Deng Aalborg University
Z Chen Aalborg University
D. Karwatzki Leibniz Universität
A. Mertens Leibniz Universität
M. Parker University of Strathclyde
SJ Finney University of Strathclyde
A Thomas Siemens Wind Power
Azar Z. Siemens Wind Power
E Hendriks Knowledge Centre WMC
A. Penzkofer University of Sheffield
K Atallah University of Sheffield
R.R. Dragan Magnomatics
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Copyright: © 2017 Asger Bech Abrahamsen, D. Liu, Niklas Magnusson, A Thomas, Azar Z., Ewoud Stehouwer, E Hendriks, A. Penzkofer, K Atallah, R.R. Dragan, R.E. .Clark, F. Deng, Z Chen, D. Karwatzki, A. Mertens, M. Parker, SJ Finney, H. Polinder
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Published Date

2017

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

Innovative drive trains targeted at 10-20 MW offshore turbines are investigated in the INNWIND.EU project in order to determine the impact on the Levelized Cost of Energy (LCoE) resulting when installed in the ,North sea at 50 m of water [1]. The two main technologies studied are superconducting direct drive (SCDD)[2] and the magnetic pseudo direct drive (PDD) [3] generators, which are both capable to providing compact drive trains with low weight and a small number of moving parts compared to a gearbox based drive train (see figure 1a). Superconducting field coils are used to provide the torque in the direct drive generators, where the armature windings are based on conventional copper wire and magnetic steel laminates operated at ambient temperature. Magnetic pseudo direct drive generators consist of a magnetic gearbox made of an inner free rotor (rotating at a geared up speed to the blade input) and an intermediate drive rotor inserted into an outer static armature winding, where the electricity is harvested.