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Coordinated decentraized emergency voltage and reactive power control to prevent long term voltage instability in a power system

Journal Article


Abstract


  • This paper proposes a decentralized adaptive emergency

    control scheme against power system voltage instability.

    Decentralized control architecture is proposed by segregating the

    system into several local areas or zones based on the concept of

    electrical distance. Intelligent agents are assigned in each area to

    monitor the bus voltages and generator reactive powers to detect

    any threat of voltage collapse and to actuate countermeasures.

    A novel performance index has been formulated based on the

    load voltage and generator reactive power violations to identify

    the severity of disturbance and the risk of system emergency in

    each area. The coordination of the timing of the countermeasures

    among the agents is achieved through the formulation of the

    integral of the performance index. The simplicity and the adaptive

    nature of the proposed control scheme to provide countermeasures

    against any disturbance make it useful for real-time application.

    The robustness of the proposed approach has been validated

    through several case studies using the New England 39-bus test

    system and a more realistic Nordic32 test system.

Publication Date


  • 2014

Citation


  • S. Islam, D. Sutanto & K. M. Muttaqi , "Coordinated decentraized emergency voltage and reactive power control to prevent long term voltage instability in a power system," IEEE Transactions on Power Systems, (99) pp. 1-13, 2014.

Scopus Eid


  • 2-s2.0-85027928941

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3990

Has Global Citation Frequency


Number Of Pages


  • 12

Start Page


  • 1

End Page


  • 13

Issue


  • 99

Place Of Publication


  • United States

Abstract


  • This paper proposes a decentralized adaptive emergency

    control scheme against power system voltage instability.

    Decentralized control architecture is proposed by segregating the

    system into several local areas or zones based on the concept of

    electrical distance. Intelligent agents are assigned in each area to

    monitor the bus voltages and generator reactive powers to detect

    any threat of voltage collapse and to actuate countermeasures.

    A novel performance index has been formulated based on the

    load voltage and generator reactive power violations to identify

    the severity of disturbance and the risk of system emergency in

    each area. The coordination of the timing of the countermeasures

    among the agents is achieved through the formulation of the

    integral of the performance index. The simplicity and the adaptive

    nature of the proposed control scheme to provide countermeasures

    against any disturbance make it useful for real-time application.

    The robustness of the proposed approach has been validated

    through several case studies using the New England 39-bus test

    system and a more realistic Nordic32 test system.

Publication Date


  • 2014

Citation


  • S. Islam, D. Sutanto & K. M. Muttaqi , "Coordinated decentraized emergency voltage and reactive power control to prevent long term voltage instability in a power system," IEEE Transactions on Power Systems, (99) pp. 1-13, 2014.

Scopus Eid


  • 2-s2.0-85027928941

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3990

Has Global Citation Frequency


Number Of Pages


  • 12

Start Page


  • 1

End Page


  • 13

Issue


  • 99

Place Of Publication


  • United States