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Structural analysis and characterization of radial flux PM generators for direct-drive wind turbines

Jaen-Sola, P and McDonald, A S (2014) Structural analysis and characterization of radial flux PM generators for direct-drive wind turbines. In: 3rd Renewable Power Generation Conference (RPG 2014). IET, Naples, Italy. ISBN 9781634396523

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Abstract

Wind turbine direct-drive generator structures are analysed in order to optimise and reduce mass. A method for modelling key stiffness parameters including a magnetic air-gap stiffness is outlined. Different approaches are used to parametrically calculate structural stiffness and mass. Finite element and analytical techniques are used to model mode 0 and mode 1 deflections and these can be used along with parametric models of electromagnetically active material.