A philosophy for the improvement of the extraction of controlled dc power from a polyphase ac supply line is presented. Extension of this philosophy for the interface of synchronous polyphase networks is briefly indicated. The needed kilovolt-ampere capacity of the supply line is reduced to nearly two thirds of the capacity needed for conventional controlled ac/dc converter systems. The new system requires only a small fraction of the physical weight of conventional converters. The improvements are derived from the interposition of a modulated high-power frequency carrier between the linked systems for the purpose of reconciliation of their conflicting characteristics. The harmonic content of the ac-phase currents is greatly reduced. The system operates with internal frequencies near 10 kHz; efficiencies in the upper nineties have been attained with this type of converter.


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    Title :

    Certain System Aspects of the Double-Sided Cyclo-Converter


    Contributors:

    Published in:

    Publication date :

    1980-05-01


    Size :

    2168833 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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