Development of the emergency voltage control scheme using VMPI

Hirohide Tanaka*, Keita Tokumitsu, Shinichi Iwamoto, Ryoji Kobayashi, Daigo Hirano, Akira Takeuchi

*Corresponding author for this work

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

    2 Citations (Scopus)


    Recently, as power system loads are located further away from power plants and as they are distributed more unevenly ,reactive power losses have increased due to the heavier power flows with the growth in high load demand and long distance transmission. Therefore, concerns over voltage instability phenomena have grown as significant voltage drops and voltage collapse have been experienced. Thus, preventive voltage control schemes using voltage stability indices have become of importance in a considerable number of studies. However, there are some cases in which the bus voltage exceeds the upper voltage limit when preventive voltage controls are conducted in a system with long distance transmission lines. Therefore, it is the goal of this paper to develop an emergency voltage stability control with the index VMPI (Voltage Margin Proximity Index) and the ellipse fitting P-V curves. Simulations are run using the IEEJ WEST 30 machine 115 bus system to verify the effectiveness of the proposed method.

    Original languageEnglish
    Title of host publication2009 IEEE Power and Energy Society General Meeting, PES '09
    Publication statusPublished - 2009
    Event2009 IEEE Power and Energy Society General Meeting, PES '09 - Calgary, AB
    Duration: 2009 Jul 262009 Jul 30


    Other2009 IEEE Power and Energy Society General Meeting, PES '09
    CityCalgary, AB


    • Emergency control
    • P-V curve
    • VMPI
    • Voltage stability

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering


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