This paper presents a resistance emulation based fault ride through scheme for standalone voltage source inverters. Typically, fast electronic protection schemes such as overcurrent and IGBT desaturation, are employed to detect inverter overload and short-circuit faults. However, this results in complete inverter shut-down rapidly, much before the slower electromechanical protection systems such as circuit breakers can function. In this work, a resistance emulation based technique is suggested that provides fault ride-through capability to the inverter, thus allow­ing electromechanical protections to function. A state machine is presented which incorporates hierarchal loop stability and multiple current constraints for appropriate impedance selection. The proposed method is verified in hardware.


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    Titel :

    Resistance emulation based fault ride-through in standalone voltage source inverters


    Beteiligte:
    Mallik, Rahul (Autor:in) / Venkatramanan, D. (Autor:in) / Adapa, Anil K. (Autor:in) / John, Vinod (Autor:in)


    Erscheinungsdatum :

    01.12.2017


    Format / Umfang :

    572985 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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