Electrical generators for direct drive systems: a technology overview
M. Mueller and A. Zavvos, University of Edinburgh, UK
Abstract:
This chapter gives an overview of the various direct drive generator technologies for wind turbines and focuses on the different permanent magnet generator topologies. Their advanced characteristics have drawn a number of manufacturers towards this system which now represents 20% of the sold wind turbines worldwide. However, in order to attain high torque levels they require an increased airgap diameter. This chapter will guide the reader through the various direct drive generator topologies for wind turbines that have been suggested in the literature and outline the ones with the highest potential to ...
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