Open AccessDevelopment of low translator mass linear Vernier machine for wave energy power take off
Author(s) -
Raihan Mohammad A.H.,
Baker Nick J.,
Smith Kris J.,
Almoraya Ahmed A.
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.9304
Subject(s) - vernier scale , magnet , stator , ripple , finite element method , power (physics) , topology (electrical circuits) , mechanical engineering , force density , halbach array , physics , computer science , electrical engineering , acoustics , engineering , structural engineering , mechanics , optics , quantum mechanics
This article proposes a new topology of double‐sided linear Vernier permanent magnet (LVPM) machine with segmented translator structure. A combination of a typical Halbach array consists of two horizontally magnetised permanent magnets (PMs) sandwiched between a salient iron tooth and adjacent vertically magnetised PM pole with the aim of improving its electromagnetic performance. The coreless partitioned translator contributes to a significant reduction in mass and the associated cost. With the aid of finite element analysis (FEA), two LVPM machines with the same PM, and stator volume have been investigated, analysed, and compared. The results imply that the proposed LVPM is capable of producing higher force density, while it exhibits lower cogging force and force ripple compared to its counterpart.