Hybrid excitation of synchronous generators for wind turbines

McDonald, Alasdair; (2013) Hybrid excitation of synchronous generators for wind turbines. In: 2nd IET Renewable Power Generation Conference (RPG 2013). IET, CHN. ISBN 978-1-84919-758-8

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Abstract

A simplified hybrid PM- and electrically excited synchronous generator model is introduced. A 3MW direct-drive wind turbine Cost of Energy model is used to show how magnet costs can make hybrid or fully electrically-excited synchronous machines economically attractive.