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    An improved four step commutation process for silicon carbide based matrix converters

    Access Status
    Fulltext not available
    Authors
    Ali, S.
    Wolfs, Peter
    Date
    2016
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ali, S. and Wolfs, P. 2016. An improved four step commutation process for silicon carbide based matrix converters.
    Source Title
    Proceedings of the 2016 Australasian Universities Power Engineering Conference, AUPEC 2016
    DOI
    10.1109/AUPEC.2016.07749294
    ISBN
    9781509014057
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/55701
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 IEEE. This paper describes an improved matrix converter (MC) commutation process. The paper reviews existing commutation methods including the overlap and dead-band approaches and then two-, three- and four-step commutation processes. Their limitations are discussed and an improved fourstep commutation process is proposed. The paper categorises switches as one or two active devices, or degree of freedom (DOF), implementations. The paper focuses on a two degrees of freedom SiC MOSFET switch for a four by four generalised MC implementation. The commutation process is summarised using two- three- and four-leg state machine diagrams. Experimental results are presented for Si-based MOSFETs and SiC-based MOSFETs switches using the four-step two-leg commutation process.

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