A novel magnetic-geared tubular linear machine with halbach permanent-magnet arrays for tidal energy conversion

Siu Lau Ho; Q. Wang; Shuangxia Niu; Weinong Fu

doi:10.1109/INTMAG.2015.7156610

A novel magnetic-geared tubular linear machine with halbach permanent-magnet arrays for tidal energy conversion

Siu Lau Ho, Q. Wang, Shuangxia Niu, Weinong Fu

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

3 Citations (Scopus)

Abstract

This paper proposes a novel magnetic-geared tubular linear machine for tidal and wave energy conversion. By embedding the armature windings into the air slots adjacent to the modulating segments of the linear magnetic gear, a compact component which can simultaneously serve both as the modulating segment and the armature stator is realized. Therefore, the proposed machine can enjoy the magnetic gearing effect with improved force density and simpler mechanical structure when compared to its existing counterparts. Moreover, Halbach permanent-magnet (PM) array is used to constitute the PM poles in both the inner mover and outer mover, aiming to increase the thrust force density, reduce the cogging force and enhance the machine efficiency. Design optimization of the proposed machine is described. The machine performances are analytically studied and quantitatively assessed using finite element method (FEM).

Original language	English
Title of host publication	2015 IEEE International Magnetics Conference, INTERMAG 2015
Publisher	IEEE
ISBN (Electronic)	9781479973224
DOIs	https://doi.org/10.1109/INTMAG.2015.7156610
Publication status	Published - 1 Jan 2015
Event	2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China Duration: 11 May 2015 → 15 May 2015

Conference

Conference	2015 IEEE International Magnetics Conference, INTERMAG 2015
Country/Territory	China
City	Beijing
Period	11/05/15 → 15/05/15

Keywords

Design optimization
finite element method (FEM)
Halbach permanent-magnet
tubular linear machine

ASJC Scopus subject areas

Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

More information

10.1109/INTMAG.2015.7156610

Cite this

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title = "A novel magnetic-geared tubular linear machine with halbach permanent-magnet arrays for tidal energy conversion",

abstract = "This paper proposes a novel magnetic-geared tubular linear machine for tidal and wave energy conversion. By embedding the armature windings into the air slots adjacent to the modulating segments of the linear magnetic gear, a compact component which can simultaneously serve both as the modulating segment and the armature stator is realized. Therefore, the proposed machine can enjoy the magnetic gearing effect with improved force density and simpler mechanical structure when compared to its existing counterparts. Moreover, Halbach permanent-magnet (PM) array is used to constitute the PM poles in both the inner mover and outer mover, aiming to increase the thrust force density, reduce the cogging force and enhance the machine efficiency. Design optimization of the proposed machine is described. The machine performances are analytically studied and quantitatively assessed using finite element method (FEM).",

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author = "Ho, {Siu Lau} and Q. Wang and Shuangxia Niu and Weinong Fu",

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A novel magnetic-geared tubular linear machine with halbach permanent-magnet arrays for tidal energy conversion. / Ho, Siu Lau; Wang, Q.; Niu, Shuangxia et al.
2015 IEEE International Magnetics Conference, INTERMAG 2015. IEEE, 2015. 7156610.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

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AU - Ho, Siu Lau

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AU - Niu, Shuangxia

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PY - 2015/1/1

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N2 - This paper proposes a novel magnetic-geared tubular linear machine for tidal and wave energy conversion. By embedding the armature windings into the air slots adjacent to the modulating segments of the linear magnetic gear, a compact component which can simultaneously serve both as the modulating segment and the armature stator is realized. Therefore, the proposed machine can enjoy the magnetic gearing effect with improved force density and simpler mechanical structure when compared to its existing counterparts. Moreover, Halbach permanent-magnet (PM) array is used to constitute the PM poles in both the inner mover and outer mover, aiming to increase the thrust force density, reduce the cogging force and enhance the machine efficiency. Design optimization of the proposed machine is described. The machine performances are analytically studied and quantitatively assessed using finite element method (FEM).

AB - This paper proposes a novel magnetic-geared tubular linear machine for tidal and wave energy conversion. By embedding the armature windings into the air slots adjacent to the modulating segments of the linear magnetic gear, a compact component which can simultaneously serve both as the modulating segment and the armature stator is realized. Therefore, the proposed machine can enjoy the magnetic gearing effect with improved force density and simpler mechanical structure when compared to its existing counterparts. Moreover, Halbach permanent-magnet (PM) array is used to constitute the PM poles in both the inner mover and outer mover, aiming to increase the thrust force density, reduce the cogging force and enhance the machine efficiency. Design optimization of the proposed machine is described. The machine performances are analytically studied and quantitatively assessed using finite element method (FEM).

KW - Design optimization

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M3 - Conference article published in proceeding or book

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PB - IEEE

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A novel magnetic-geared tubular linear machine with halbach permanent-magnet arrays for tidal energy conversion

Abstract

Conference

Keywords

ASJC Scopus subject areas

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