This paper describes the operation, design, performance, and application of high reliability, variable speed constant frequency (VSCF) aircraft electric power generating systems. A high frequency, multi-phase, brushless generator supplies power to a frequency converter which conditions the variable frequency generator output into precision 3-phase, 115/200V, 400 Hz aircraft power, using the cycloconverter principle. Systems have been built with ratings from 20 to 150 kva. For a 75 kva system, the weight to rating ratio is about 1.6 lbs/kva and rated load efficiency is 80%. Predicted MTBF for current systems is in the 2000 to 6000 hour range.


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    Title :

    Variable Speed Constant Frequency (VSCF) Aircraft Electrical Power


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Meeting ; 1977



    Publication date :

    1977-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English