Design and Finite Element Analysis of a Novel Transverse Flux Permanent Magnet Disk Generator

This paper presents a novel structure of a transverse flux permanent magnet disk generator. The proposed disk shape structure simplifies prototyping by using simple laminated steel sheets in comparison with previous transverse flux structures that employ bent laminations and soft magnetic composites. Also the proposed structure has a higher power factor than what has been reported previously for transverse flux permanent magnet structures. After introducing the transverse flux permanent magnet disk generator, the design process is explained and a small power generator is designed and then optimized. The necessity of optimization is to find the best inner radius which maximizes output power to weight ratio, power factor and efficiency. To this end, the optimization process needs three dimensional finite element analyses.