Analysis of a single phase, quasi-Halbach magnetised tubular permanent magnet motor with non-ferromagnetic supporting tube
Analysis of a single phase, quasi-Halbach magnetised tubular permanent magnet motor with non-ferromagnetic supporting tube
- Author(s): T. Ibrahim ; J. Wang ; D. Howe
- DOI: 10.1049/cp:20080624
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- Author(s): T. Ibrahim ; J. Wang ; D. Howe Source: 4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008), 2008 p. 762 – 766
- Conference: 4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008)
- DOI: 10.1049/cp:20080624
- ISBN: 978 0 86341 900 3
- Location: York, UK
- Conference date: 2-4 April 2008
- Format: PDF
The paper describes the analysis of a short stroke, single phase quasi-Halbach magnetised tubular permanent magnet linear motor with non- ferromagnetic tube. The open-circuit magnetic field distribution is established analytically in terms of a magnetic vector potential formulated in the cylindrical coordinate system. The analytical field solution allows the prediction of flux linkage, back-emf and thrust force of the linear motor in closed forms and facilitates design optimisation. The analytically results are validated by finite elements analyses. A prototype linear motor has been constructed and the static performance test has been carried out. The experimental results have validated the predictions. Performance comparison is also given with a design variant which employs a ferromagnetic supporting tube.
Inspec keywords: electric potential; linear motors; permanent magnet motors
Subjects: Linear machines
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