A Homopolar HTSG Topology for Large Direct-Drive Wind Turbines

Date

2011-10-01

Author

Keysan, Ozan

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For offshore wind energy, there is a trend toward larger wind turbines. The increased mass of a power-takeoff system increases the installation cost of the turbine. Direct-drive superconducting generators have the potential to reduce the installation cost of wind turbines. For a successful entry to the off-shore-wind-energy market, a high-temperature superconducting generator should be as reliable as conventional generators. It is proposed that a stationary superconducting direct-current-field winding may increase the reliability of the generator. An axial-flux homopolar generator topology is proposed to be used in low-speed high-torque applications. The topology is modified by using two superconducting field windings to obtain a bipolar flux-density distribution for higher power density. Different core types and dimensions were examined to find the most suitable design, and a conceptual design of a 6-MW 12-r/min generator is presented.

Subject Keywords

Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/47475

Journal

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

DOI

https://doi.org/10.1109/tasc.2011.2159005

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

O. Keysan, “A Homopolar HTSG Topology for Large Direct-Drive Wind Turbines,” IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, pp. 3523–3531, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47475.