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    Angle droop versus frequency droop in a voltage source converter based autonomous microgrid

    Access Status
    Fulltext not available
    Authors
    Majumder, R.
    Ghosh, Arindam
    Ledwich, G.
    zare, F.
    Date
    2009
    Type
    Conference Paper
    
    Metadata
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    Citation
    Majumder, R. and Ghosh, A. and Ledwich, G. and zare, F. 2009. Angle droop versus frequency droop in a voltage source converter based autonomous microgrid, in - (ed), Power & Energy Society General Meeting, 2009. PES '09. IEEE, Jul 26 2009. Canada: Institute of Electrical and Electronics Engineers ( IEEE ).
    Source Title
    2009 IEEE Power & Energy Society General Meeting (PESGM 2009)
    Source Conference
    Power & Energy Society General Meeting, 2009. PES '09. IEEE
    ISBN
    978-1-4244-4241-6
    URI
    http://hdl.handle.net/20.500.11937/8124
    Collection
    • Curtin Research Publications
    Abstract

    This paper compares the performance of angle and frequency droops in an autonomous microgrid that only contains voltage source converter (VSC) interfaced distributed generators (DGs). As a VSC can instantaneously change output voltage waveform, power sharing in a microgrid is possible by controlling the output voltage angle of the DGs through droop. The angle droop is able to provide proper load sharing among the DGs without a significant steady state frequency drop in the system. It is shown that the frequency variation with the frequency droop controller is significantly higher than that with the angle droop controller. The angle droop controller is derived from DC load flow. Both the angle and frequency droop controllers are designed through eigenvalue analysis. The performance of these two controllers is then performed through PSCAD simulations.

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