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

In English

Författare

Summary, in English

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.

Publiceringsår

2004

Språk

Engelska

Sidor

386-391

Publikation/Tidskrift/Serie

IEE Conference Publication

Volym

1

Dokumenttyp

Konferensbidrag

Förlag

Institution of Electrical Engineers

Ämne

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • Torque response
  • Permanent magnet machines
  • Leakage
  • Claw-poles

Conference name

Second International Conference on Power Electronics, Machines and Drives, PEMD 2004

Conference date

2004-03-31 - 2004-04-02

Conference place

Edinburgh, United Kingdom

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0537-9989
  • ISBN: 0-86341-383-8