Study on system voltage oscillation and voltage stability control

Yuya Suzuki, Ryuichi Ogahara, Shinichi Iwamoto

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)


    This paper analyzes system voltage oscillation and proposes a new systematic method for voltage stability control in the power system. Recently, renewable energy and distributed power generation have been introduced into power systems because of worldwide societal interest in environmental problems. However, renewable energies such as photovoltaic and wind power generation are unstable due to their dependence on natural sources. This has made power systems more complicated and potentially prone to large outages, particularly due to voltage instability phenomena. However, power system voltage stability has been handled as a static condition problem in many cases, and considered peak load situations where the load is expected to increase in the future. Yet when renewable energy penetration becomes significant, time evaluation of voltage stability becomes necessary. This paper analyzes dynamic voltage instability phenomena in power systems, and proposes a voltage stability control. Finally we carry out simulations for a single machine with one load model system to confirm the validity of the proposed method.

    Original languageEnglish
    Title of host publication10th International Power and Energy Conference, IPEC 2012
    Number of pages6
    Publication statusPublished - 2012
    Event10th International Power and Energy Conference, IPEC 2012 - Ho Chi Minh City
    Duration: 2012 Dec 122012 Dec 13


    Other10th International Power and Energy Conference, IPEC 2012
    CityHo Chi Minh City


    • dynamic simulation
    • load increase
    • NAS battery
    • voltage dynamic collapse
    • Voltage stability
    • VQC control

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Fuel Technology


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