Constrained optimisation of a transverse flux PM linear generator

This article reports on a finite element analysis assisted optimisation strategy for a moving magnet, transverse flux, short stroke linear generator for free-piston Stirling engine applications. The optimisation goal was to maximise the power-to-weight ratio while maintaining pre-set power and efficiency levels. The topology and the implementation of the optimisation strategy are discussed, followed by a comparison between simulated and measured results for a 3 kW prototype.

[1]  Steven M. Geng,et al.  A 3-D magnetic analysis of a linear alternator for a Stirling power system , 2000, Collection of Technical Papers. 35th Intersociety Energy Conversion Engineering Conference and Exhibit (IECEC) (Cat. No.00CH37022).

[2]  J. Schutte,et al.  Optimisation of a transverse flux linear PM generator using 3D finite element analysis , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[3]  I. Boldea,et al.  Linear Electric Actuators and Generators: Linear Electric Actuators and Generators , 1997 .

[4]  Alija Cosic,et al.  Analysis of a novel Transversal Flux Machine with a tubular cross-section for Free Piston Energy Converter application , 2010 .