The paper explores the design implications of accommodating the engine start function in a large variable frequency starter-generator. Using data from an existing 225kVA starter-generator the trade off between the stator current, which impacts the size and rating of the start inverter, and the field current, which affects the size, rating, and complexity of the excitation system is explored. The suitability of a 3-phase AC main exciter is assessed as a direct replacement for the conventional main exciter. An optimization of the 3-phase configuration is presented, aimed at achieving minimum input VA to the exciter for a given field excitation requirement during start. Results from this prototype start excitation system indicate high levels of field current are possible from a design which could be retrofitted within the mechanical envelope of the conventional exciter.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design Considerations for Aircraft Generator with Start Function


    Additional title:

    Sae Technical Papers


    Contributors:
    Rolfe, B. (author) / Drury, D. (author) / Turner, J. (author) / Mellor, P. H. (author) / Collins, R. (author) / Stevenson, R. (author) / Wrobel, R. (author)

    Conference:

    Power Systems Conference ; 2008



    Publication date :

    2008-11-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design Considerations for Aircraft Generator with Start Function

    Mellor, P.H. / Drury, D. / Wrobel, R. et al. | British Library Conference Proceedings | 2008



    SAFETY CONSIDERATIONS IN AIRCRAFT DESIGN

    BORDELON, L. J. | SAE Technical Papers | 1955


    Safety considerations in aircraft design

    Bordelon, L.J. | Engineering Index Backfile | 1955


    Design considerations for cargo aircraft

    Arata, Jr., W.H. | Engineering Index Backfile | 1955