Design of an outer-translator flux switching linear generator for use in a heaving wave energy converter

Baker, NJ; Farahani, EF; Mahmouditabar, F

doi:10.1049/icp.2023.3154

Design of an outer-translator flux switching linear generator for use in a heaving wave energy converter

Lookup NU author(s): Dr Nick Baker ORCiD, Dr Ehsan Farahani ORCiD, Farshid Mahmouditabar

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Abstract

© The Institution of Engineering & Technology 2023. This study discusses the design and optimisation of an outer-Translator H-Type flux switching permanent magnet linear generator for integration into a wave energy converter. The stator of the proposed electrical machine consists of six H-Type modules, each sandwiched by two permanent magnets (PMs). The translator is a toothed iron structure integrated into a heaving buoy wave energy converter. The buoy configuration is described prior to a basic hydrodynamic model being used to specify the parameters of a 2.4kW average power demonstrator generator. The electrical machine is optimised employing the Taguchi optimisation method with the aim of improving the thrust force and efficiency and lowering the force ripple. 2D finite element analysis is used to give thrust force, back emf, cogging force and magnetic flux density distributions of the optimised generator. Finally, the results are scaled to give a tubular design for the target wave energy converter.