CUED Publications database

Characterising rotors for brushless doubly-fed machines (BDFM)

McMahon, R and Tavner, P and Abdi, E and Malliband, P and Barker, D (2010) Characterising rotors for brushless doubly-fed machines (BDFM). 19th International Conference on Electrical Machines, ICEM 2010.

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Abstract

The brushless doubly fed machine (BDFM) is a robust alternative to the doubly fed induction generator (DFIG) which is widely used in wind turbines but suffers from failures associated with its brushes and sliprings. The rotor plays an important part in a BDFM, coupling the two stator fields. To date, the nested loop has been almost exclusively used in modern BDFMs, but this approach is not ideally suited to large machines in which a form wound rotor is likely to be preferable from a manufacturing point of view. This paper gives a comparative study of two rotor windings. The performance of the rotors has been predicted from theory for a frame size 160 BDFM. Actual rotors have been built, using identical rotor laminations, and tested, giving results which accord well with predictions. The results give insight into the design issues of rotors both from electrical and manufacturing viewpoints. ©2010 IEEE.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:22
Last Modified: 28 Nov 2014 19:05
DOI: 10.1109/ICELMACH.2010.5607908