The medium-voltage dc (MVDC) architecture shows potential for future ship power systems. Components of the MVDC system are fairly well established; with the exception of circuit breakers. The main problem with the breakers in dc systems is the absence of a zero crossing in the current needed to extinguish an interrupting arc. Options for breakers in MVDC systems include over-sizing traditional ac breakers, hybrid mechanical/semiconductor breakers, and solid-state breakers. The recently introduced z-source breaker is most similar to the solid-state breaker, but has the additional feature of automatically responding to faults quickly and without the need for fault detection. Furthermore, the z-source breaker isolates the generation source from the fault current. This paper presents detailed analysis of the z-source breaker as well as variations on the topological structure. The various breaker options are validated through detailed simulation.


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    Title :

    Structure and analysis of the Z-source MVDC breaker


    Contributors:
    Corzine, K A (author) / Ashton, R W (author)


    Publication date :

    2011-04-01


    Size :

    935837 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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