Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Structural analysis and optimisation of transverse flux permanent magnet machines for 5 and 10 MW direct drive wind turbines

Zavvos, Aris and Bang, Deok-je and McDonald, Alasdair and Polinder, Henk and Mueller, Markus (2012) Structural analysis and optimisation of transverse flux permanent magnet machines for 5 and 10 MW direct drive wind turbines. Wind Energy, 15 (1). pp. 19-43. ISSN 1095-4244

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The transverse flux permanent magnet generator offers high power density in terms of active mass. Two configurations of this machine topology (referred to as TFPM-1 and TFPM-2) are described, and optimised electromagnetic designs are presented. Direct drive generators require a significant support structure, which is designed to minimise the deflection into the air gap due to inherent electromagnetic attraction forces. The design of these structures is also dependant upon the generator topology. Structural design tools, which can be used in a design office environment, have been developed for the transverse flux machine and verified using commercial numerical modelling packages. Generic disc and arm structures are used. Only static analysis has been performed, but this does provide the designer with an estimate for more detailed design. A comparison of mass is made between the two transverse flux machines and a more conventional iron-cored permanent magnet generator. The comparison shows that TFPM-2 has the lowest total mass at 5 and 10 MW, but the conventional iron-cored machine is lighter than TFPM-1.