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A modular and cost-effective superconducting generator design for offshore wind turbines
Date
2015-03-01
Author
Keysan, Ozan
Mueller, Markus
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Superconducting generators have the potential to reduce the tower head mass for large (similar to 10 MW) offshore wind turbines. However, a high temperature superconductor generator should be as reliable as conventional generators for successful entry into the market. Most of the proposed designs use the superconducting synchronous generator concept, which has a higher cost than conventional generators and suffers from reliability issues. In this paper, a novel claw pole type of superconducting machine is presented. The design has a stationary superconducting field winding, which simplifies the design and increases the reliability. The machine can be operated in independent modules; thus even if one of the sections fails, the rest can operate until the next planned maintenance. Another advantage of the design is the very low superconducting wire requirement; a 10 MW, 10 rpm design is presented which uses 13 km of MgB2 wire at 30 K. The outer diameter of the machine is 6.63 m and it weighs 184 tonnes including the structural mass. The design is thought to be a good candidate for entering the renewable energy market, with its low cost and robust structure.
Subject Keywords
Electrical and Electronic Engineering
,
Materials Chemistry
,
Condensed Matter Physics
,
Metals and Alloys
,
Ceramics and Composites
URI
https://hdl.handle.net/11511/35408
Journal
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
DOI
https://doi.org/10.1088/0953-2048/28/3/034004
Collections
Department of Electrical and Electronics Engineering, Article
Citation Formats
IEEE
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BibTeX
O. Keysan and M. Mueller, “A modular and cost-effective superconducting generator design for offshore wind turbines,”
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
, vol. 28, no. 3, pp. 0–0, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35408.