This paper extends the application of current-mode, shared-bus converters to power system architectures configured as Parallel-Input, Series-Output (PISO). By employing a PISO interconnect method, current-mode commercial-off-the-shelf (COTS) dc-dc converters can deliver higher output voltages, provide flexible options for power system expansion, and preserve system efficiencies equal to that obtained from standalone converters. However, without proper control, non-uniformly distributed voltages occur due to converter component mismatch. System reliability suffers as a result of thermal overstress to the converters that contribute a greater portion of the output power. Conversely, robust system stability and uniform output voltage distribution among series-connected converters is realized through output voltage distribution control. Through both computer simulation and experimental prototype, the uniform voltage distribution power converter architecture is validated and successfully applied during power converter burn-in testing whereby converter load energy is recycled to the power system input, resulting in 49% to 80% conservation of energy.


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    Titel :

    Uniform voltage distribution control for paralleled-input, series-output connected converters


    Beteiligte:
    Siri, K. (Autor:in) / Conner, K.A. (Autor:in) / Truong, C.H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2005


    Format / Umfang :

    11 Seiten, 24 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Uniform Voltage Distribution Control for Parallel-Input, Series-Output Connected Converters

    Siri, K. / Conner, K. A. / Truong, C. H. et al. | British Library Conference Proceedings | 2005



    High-voltage-input, low-voltage-output, series-connected converters with uniform voltage distribution

    Siri, Kasemsan / Willhoff, Michael / Conner, Kenneth A. et al. | IEEE | 2009


    Uniform Voltage Distribution Control for Series Connected DC-DC Converters

    Siri, Kasemsan / Willhoff, Michael / Conner, Kenneth | AIAA | 2006