Effects of Armature Winding Segmentation with Multiple Converters on the Short Circuit Torque of 10-MW Superconducting Wind Turbine Generators

Journal article (2017)

Authors

D. Liu DC systems, Energy conversion & Storage -

H. Polinder DC systems, Energy conversion & Storage -

Asger Bech Abrahamsen Technical University of Denmark (DTU)

Jan Abraham Ferreira Electrical Power Processing

Research Group

DC systems, Energy conversion & Storage () (TU Delft)

Wind turbine Torque Topology Superconducting generator Short circuit Armature winding segmentation

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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

Superconducting synchronous generators (SCSGs) are drawing more attention in large direct-drive wind turbine applications. Despite low weight and compactness, the short circuit torque of an SCSG may be too high for wind turbine constructions due to a large magnetic air gap of an SCSG. This paper aims at assessing the effects of armature winding segmentation on reducing the short circuit torque of 10-MW SCSGs. A concept of armature winding segmentation with multiple power electronic converters is presented. Four SCSG designs using different topologies are examined. Results show that armature winding segmentation effectively reduce the short circuit torque in all the four SCSG designs when one segment is shorted at the terminal.

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