A Light-Weight Rotor Design for Brushless Doubly Fed Machines

Salman Abdi Jalebi, Ehsan Abdi, Richard McMahon

    Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

    4 Citations (Scopus)
    104 Downloads (Pure)


    In this paper, a new optimized rotor design for Brushless Doubly Fed Machines (BDFMs) is proposed. The BDFM is considered as an attractive generator particularly for offshore wind power generation and also as a replacement for doubly fed slip ring induction generators. This is due to its higher reliability and lower maintenance reported in the literature. It is shown in this paper from the study of the magnetic field distribution in the rotor core that the conventional design of the BDFM rotor iron core can be modified, leading to a lighter machine. The proposed design method is supported by an analytical study and its practicality is validated using 2-D Finite Element (FE) analysis. A 250 kW experimental BDFM with frame size D400 is considered as the prototype machine.
    Original languageEnglish
    Title of host publicationXIII International Conference on Electrical Machines (ICEM'2018)
    Number of pages6
    ISBN (Electronic)978-1-5386-2477-7
    ISBN (Print)978-1-5386-2478-4
    Publication statusPublished - 25 Oct 2018
    EventXIII International Conference on Electrical Machines - Alexandroupoli, Greece
    Duration: 3 Sept 20186 Sept 2018


    ConferenceXIII International Conference on Electrical Machines
    Abbreviated titleICEM 2018
    Internet address

    Bibliographical note

    © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must
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    ISSN - 2381-4802


    • Brushless doubly fed machine (BDFM)
    • rotor back iron
    • finite element analysis (FEA)
    • magnetic circuit
    • iron saturation
    • magnetic flux density


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