Development of a double-sided consequent pole linear vernier hybrid permanent-magnet machine for wave energy converters

Almoraya, AA; Baker, NJ; Smith, KJ; Raihan, MAH

doi:10.1109/IEMDC.2017.8002157

Development of a double-sided consequent pole linear vernier hybrid permanent-magnet machine for wave energy converters

Lookup NU author(s): Ahmed Almoraya, Professor Nick Baker ORCiD, Dr Kristopher Smith, Raihan Raihan

Downloads

Accepted version [.pdf]

Licence

This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by IEEE, 2017.

For re-use rights please refer to the publisher's terms and conditions.

Abstract

Wave energy conversion can be simplified by using direct drive linear generators which may improve reliability. Numerous topologies of direct drive linear generators have been proposed in the last few decades such as the linear vernier hybrid permanent magnet (LVHPM) machine. the cost of this kind of machine is driven by the quantity of permanent magnet (PM) This paper proposes a linear vernier hybrid permanent magnet machine with consequent pole and concentrated windings for wave energy converters, which requires less magnet material for comparable performance. The key of the proposed design is the modular stator where the unbalanced magnetic circuit caused by consequent pole can be eliminated. Based on finite element analyses (FEA) the present machine is capable of higher thrust force, higher back EMF and lower cogging force as well as force ripple compared to that of a baseline LVHPM machine.