Compared with traditional electrochemical batteries, flywheel energy storage systems are attractive in certain aerospace applications due to their high power density and dual-use ability to achieve attitude control. A small flywheel energy storage unit with high energy and power density must operate at extremely high rotating speeds; i.e., of the order of hundreds of thousands of revolutions per minute. In this paper, initial test data is provided on a prototype permanent magnet flywheel motor/generator with design goals of achieving 100 W of power conversion over a speed range from 150,000 rpm and 300,000 rpm. A field-oriented position-sensorless control scheme is implemented on the machine. The initial test results indicate the system has the potential to meet the desired performance.


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    Title :

    Ultrahigh speed permanent magnet motor/generator for aerospace flywheel energy storage applications


    Contributors:
    Wang, Wensen (author) / Hofmann, H. (author) / Bakis, C.E. (author)


    Publication date :

    2005


    Size :

    7 Seiten, 10 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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