CUED Publications database

Design of brushless doubly-fed machines based: On magnetic circuit modeling

Hsieh, M-F and Lin, I-H and Hsu, Y-C and McMahon, RA (2012) Design of brushless doubly-fed machines based: On magnetic circuit modeling. IEEE Transactions on Magnetics, 48. pp. 3017-3020. ISSN 0018-9464

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Abstract

This paper proposes a magnetic circuit model (MCM) for the design of a brushless doubly-fed machine (BDFM). The BDFM possesses advantages in terms of high reliability and reduced gearbox stages, and it requires a fractionally-rated power converter. This makes it suitable for utilization in offshore wind turbines. It is difficult for conventional design methods to calculate the flux in the stator because the two sets of stator windings, which have different pole number, form a complex flux pattern which is not easily determined using common analytical approaches. However, it is advantageous to predict the flux density in the teeth and air-gap at the initial design stage for sizing purposes without recourse finite element analysis. Therefore a magnetic circuit model is developed in this paper to calculate the flux density. A BDFM is used as a case study with FEA validation. © 1965-2012 IEEE.

Item Type: Article
Uncontrolled Keywords: Brushless doubly fed machines magnetic circuit model saturation wind turbines
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 08 Dec 2014 02:31
DOI: 10.1109/TMAG.2012.2204866