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    Improvements to LV distribution system PV penetration limits using a dSTATCOM with reduced DC bus capacitance

    Access Status
    Fulltext not available
    Authors
    Wolfs, Peter
    Than Oo, A.
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Wolfs, P. and Than Oo, A. 2013. Improvements to LV distribution system PV penetration limits using a dSTATCOM with reduced DC bus capacitance.
    Source Title
    IEEE Power and Energy Society General Meeting
    DOI
    10.1109/PESMG.2013.6672294
    ISBN
    9781479913039
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/56325
    Collection
    • Curtin Research Publications
    Abstract

    A low voltage (LV) distribution level static compensator (dSTATCOM) is shown capable of regulating the positive sequence reactive power within a network while simultaneously cancelling zero and negative sequence currents that are introduced by load unbalance or by high levels of distributed photovoltaic (PV) generation. Instantaneous reactive power theory shows that DC-bus capacitor power will fluctuate at twice mains frequency during unbalanced operation and negative sequence currents will produce significantly higher voltage ripples than either positive or zero sequence currents. High rating non-polarized bus capacitors can be applied if the negative sequence currents are restricted. The paper proposes a method that allows a compensator with finite rating to best allocate its capacity to negative sequence, zero sequence and reactive power compensation. © 2013 IEEE.

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