Evaluation of voltage stability based on sensitivity analyses of electric pricing

Rui Li, Luonan Chen, Ryuichi Yokoyama

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

    Abstract

    This paper presents a method to evaluate voltage stability based on the decomposition of the nodal price of each bus. Specifically, we first form an optimal power flow problem with voltage stability constraints, and then derive a decomposition expression for all factors related to nodal prices, in particular voltage stability constraints, which are given by a set of equalities. A numerical example based on IEEE 30-bus standard system is used to demonstrate the proposed method. Since the voltage stability is directly evaluated based on equivalent values, such information can be used not only to improve the efficient usage of power grid and congestion management, but also to provide economic signals for generation or transmission investment.

    Original languageEnglish
    Title of host publication2004 IEEE PES Power Systems Conference and Exposition
    Pages919-924
    Number of pages6
    Volume2
    Publication statusPublished - 2004
    Event2004 IEEE PES Power Systems Conference and Exposition - New York, NY
    Duration: 2004 Oct 102004 Oct 13

    Other

    Other2004 IEEE PES Power Systems Conference and Exposition
    CityNew York, NY
    Period04/10/1004/10/13

    Keywords

    • Decomposition
    • Nodal price
    • Optimal power flow
    • Sensitivity analyses
    • Voltage stability constraints

    ASJC Scopus subject areas

    • Engineering(all)

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  • Cite this

    Li, R., Chen, L., & Yokoyama, R. (2004). Evaluation of voltage stability based on sensitivity analyses of electric pricing. In 2004 IEEE PES Power Systems Conference and Exposition (Vol. 2, pp. 919-924)