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    Stability of hysteretic controlled voltage source converters in a power system

    Access Status
    Fulltext not available
    Authors
    Ghosh, Arindam
    Ledwich, G.
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ghosh, A. and Ledwich, G. 2011. Stability of hysteretic controlled voltage source converters in a power system, in Dr Sumedha Rajakaruna, Publication Chair (ed), 2011 IEEE PES Innovative Smart Grid Technologies (IEEE PES ISGT ASIA 2011 Conference), Nov 13 2011. Perth Western Australia: Institute of Electrical and Electronics Engineers ( IEEE ).
    Source Title
    2011 IEEE PES Innovative Smart Grid Technologies (ISGT Australia 2011)
    Source Conference
    2011 IEEE PES Innovative Smart Grid Technologies (IEEE PES ISGT ASIA 2011 Conference)
    ISBN
    9781457708732
    URI
    http://hdl.handle.net/20.500.11937/36306
    Collection
    • Curtin Research Publications
    Abstract

    This paper develops a tool for the stability analysis of hysteretic controlled voltage source converters that are connected to a power system. Each VSC is controlled by a state feedback control input to a hysteretic comparator. A suitable model of the converter is first developed by including the state feedback gains and hysteretic switching controller design. The model is then extended to incorporate parallel operation of two VSCs. To consider autonomous operation, droop controllers are incorporated in the model. A linearized model of the system is developed for eigen analysis. It has been shown that the system response predicted by the developed model matches PSCAD simulation results very closely. Since hysteretic control is widely used for commercial converters, the model developed can be used as an analytical tool.

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