A three-phase four-wire power factor corrector based on neutral-point-clamped (NPC) topology is adopted to reduce the current harmonics and increase the input power factor. Using the NPC topology, the voltage stress of power switches can be reduced to the half of the dc-link voltage. With the dc-link voltage controller and the phase locked loop circuit, the balanced and sinusoidal line currents can be drawn from the ac supply system under the balance and unbalance mains voltages. The hysteresis current comparators are adopted in the current control loop to track the line current commands. Three voltage levels are generated on the ac terminal to the neutral point. Simulations and experiments are provided to verify the validity and the effectiveness of the proposed control scheme.


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    Titel :

    Implementation of a three-phase high-power-factor rectifier with NPC topology


    Beteiligte:
    Bor-Ren Lin (Autor:in) / Yung-Chuan Lee (Autor:in) / Tsung-Yu Yang (Autor:in)


    Erscheinungsdatum :

    01.01.2004


    Format / Umfang :

    976637 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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