Finite Element Analysis of a Permanent Magnet Machine with Two Contra-rotating Rotors
2009 (English)In: Electric power components and systems, ISSN 1532-5008, E-ISSN 1532-5016, Vol. 37, no 12, 1334-1347 p.Article in journal (Refereed) Published
Electrical machines with contra-rotating rotors find applications in direct-drive energy conversion systems and in ship propulsion systems that employ hydraulic machinery with two contra-rotating stages. In this article, the operating characteristics of permanent magnet machines with two contra-rotating rotors moving on opposite sides of a common stator core are studied via two-dimensional finite element analysis. Particular attention is devoted to the special flux distortion patterns that arise in contra-rotating machine topologies. The study suggests that the introduction of a screening iron core between the rotors provides for negligible flux distortion levels during contra-rotating synchronous operation of the two rotors.
Place, publisher, year, edition, pages
Taylor & Francis , 2009. Vol. 37, no 12, 1334-1347 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-113156DOI: 10.1080/15325000903055271ISI: 000273716300004ISBN: 1532-5008OAI: oai:DiVA.org:uu-113156DiVA: diva2:289873