Novel permanent magnet linear generator topology for wave energy conversion

• Published in: 5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010) p. MO241
• Main Authors: Vermaak, R, Kamper, M.J
• Format: Conference Proceeding
• Language: English
• Published: Stevenage, UK IET 2010
• Subjects: a.c. machines; d.c. machines; Energy resources; Finite element analysis; Hydroelectric power stations and plants; Numerical approximation and analysis; Small and special purpose electric machines; Tidal and flow energy; stators; power density; rotors; permanent magnet linear generator topology; permanent magnet generators; wave energy conversion; hydroelectric power; air gap flux distribution; finite element analysis; rotor yokes; stator yokes; FEM
• ISBN: 1849192316; 9781849192316
• DOI: 10.1049/cp.2010.0018

A novel topology for a permanent magnet linear generator for wave energy conversion is proposed. It aims to increase power density and to eliminate uneven air gap flux distribution caused by the longitudinal ends; this is done by eliminating stator and rotor yokes and by introducing a new flux path. Analytical and FEM studies are used to analyse the concept and to compare it to existing machines. Results and design challenges are discussed. (6 pages)