Alternatives for leakage reduction in a novel claw-pole electrically magnetized synchronous machine

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The leakage characteristics of a novel claw-pole electrically magnetized synchronous machine are discussed in this paper. The novelty of the machine is that the magnetizing coils are placed in magnetically conducting end-plates, thus eliminating the need of slip-rings in the rotor. A previous study comparing this machine with a permanent magnet alternative showed a 20% higher leakage in the electrically magnetized machine, and 15% lower torque. Using 3D finite element simulations, an in-depth study of the leakage paths in this machine has been carried out, together with an assessment of the solutions that contribute to reduce the leakage. It is shown that the output torque can be improved by up to 113% by combining different types of permanent magnets around the claw-poles.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Torque response, Permanent magnet machines, Leakage, Claw-poles
Original languageEnglish
Title of host publicationIEE Conference Publication
PublisherInstitution of Electrical Engineers
Pages386-391
Volume1
ISBN (Print)0-86341-383-8
StatePublished - 2004
Peer-reviewedYes
EventSecond International Conference on Power Electronics, Machines and Drives, PEMD 2004 - Edinburgh, United Kingdom
Duration: 2004 Mar 312004 Apr 2

Publication series

Name
Volume1
ISSN (Print)0537-9989

Conference

ConferenceSecond International Conference on Power Electronics, Machines and Drives, PEMD 2004
CountryUnited Kingdom
CityEdinburgh
Period2004/03/312004/04/02