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    Selective operation of three-level NPC inverter based on synchronous reference frame method supplying nonlinear loads in microgrid system

    Access Status
    Fulltext not available
    Authors
    Mortezaei, A.
    Simoes, M.
    Durra, A.
    Muyeen, S.M.
    Date
    2016
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Mortezaei, A. and Simoes, M. and Durra, A. and Muyeen, S.M. 2016. Selective operation of three-level NPC inverter based on synchronous reference frame method supplying nonlinear loads in microgrid system, in Proceedings of the 41st Annual Industrial Electronics Society Conference (IECON), Nov 9-12 2015, pp. 2950-2955. Yokohama: IEEE.
    Source Title
    IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
    DOI
    10.1109/IECON.2015.7392551
    ISBN
    9781479917624
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/22268
    Collection
    • Curtin Research Publications
    Abstract

    This paper develops selective strategies for Neutral Point Clamped Multilevel Inverter (NPC) in a microgrid application with load current decomposition based on Synchronous Reference Frame (DQ) method. The 3-level NPC inverter is investigated as widely used topology for medium and high power applications. In addition to the current injection into the grid, the 3-level NPC DG inverter is also being used to improve the power quality at point of common coupling, mitigating load current disturbances and improving power quality. For the islanded mode of operation, the control of the DG inverter involves the regulation of the instantaneous load line-to-neutral voltage magnitude, i.e. va, and frequency m. Single loop and multiloop voltage control scheme based on inductor filter current feedback are developed to regulate load voltage/frequency for a varity of load conditions. The control strategies are implemented in abc-frame. The principles supporting the selective control strategies are discussed and analyzed and the effectiveness of the control metod is demonstrated through digital simulations conducted by means of PSIM.

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