Early Prediction of Transient Voltage Sags caused by Rotor Swings

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    Abstract

    The paper investigates various methods to predict voltage sags at load buses caused by large generator rotor swings and following a transient disturbance. Three different prediction methods are proposed, which all use real-time measurements from PMUs. One of the methods uses a slightly extended version of the E-SIME method. The other two methods use Measurements and process them by recursive least square estimation. It is shown that the prediction method employing E-SIME allows the earliest detection of a critical voltage sag with satisfactory accuracy.
    Original languageEnglish
    Title of host publicationProceedings of the 2014 IEEE PES General Meeting
    Number of pages5
    PublisherIEEE
    Publication date2014
    Publication statusPublished - 2014
    Event2014 IEEE PES General Meeting - National Harbor, Washington, United States
    Duration: 27 Jul 201431 Jul 2014

    Conference

    Conference2014 IEEE PES General Meeting
    LocationNational Harbor
    Country/TerritoryUnited States
    CityWashington
    Period27/07/201431/07/2014

    Keywords

    • Power system stability
    • Rotor swings
    • Transient stability
    • Voltage sag prediction

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