Performance analysis of a novel magnetic-geared tubular linear permanent magnet machine

Shuangxia Niu, Siu Lau Ho, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

53 Citations (Scopus)


This paper presents a novel tubular linear permanent magnet machine for direct-drive applications, in which a magnetic gear is integrated with a tubular linear machine, aiming to improve the thrust force density and enhance the machine efficiency. The operating principle of the proposed machine is introduced and the machine design with improved thrust force density is presented and discussed. By using circuit-field-motion coupled time-stepping axisymmetric finite element method (FEM), the steady-state as well as transient performances of the machine are simulated. The FEM computation results are consistent with those obtained theoretically, hence verifying the validity of the machine design.
Original languageEnglish
Article number6027756
Pages (from-to)3598-3601
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - 1 Oct 2011


  • Axisymmetric field
  • finite element method
  • linear permanent magnet machine
  • magnetic gear
  • time-stepping

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


Dive into the research topics of 'Performance analysis of a novel magnetic-geared tubular linear permanent magnet machine'. Together they form a unique fingerprint.

Cite this