System security assessment in real-time using synchrophasor measurements

Hjörtur Jóhannsson, Markus Wache

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    The increasing amount of renewable power from wind and solar generation causes higher fluctuation in power generation and in general increased distances between generation and load. Both aspects influence the system stability of electricity transmission in a negative way. Therefore, additional measures to ensure stable and secure operation of the system are necessary. Time stamped synchrophasor measurements lay the foundation for development of new real-time applications for security and stability assessment. The paper provides overview of existing solutions for synchrophasor based security assessment and sheds light on ongoing research activities that focus on exploiting wide-area synchrophasor measurements for real-time security assessment of sustainable power systems. At last, an mathematical mapping enabling informative visualization of the system state in respect to aperiodic rotor angle stability is described and analyzed in detailed.
    Original languageEnglish
    Title of host publicationProceedings of 2013 IEEE PES Innovative Smart Grid Technologies
    Number of pages5
    Publication date2013
    Publication statusPublished - 2013
    Event2013 4th IEEE PES Innovative Smart Grid Technologies Europe - Technical University of Denmark (DTU), Lyngby, Denmark
    Duration: 6 Oct 20139 Oct 2013
    Conference number: 4


    Conference2013 4th IEEE PES Innovative Smart Grid Technologies Europe
    LocationTechnical University of Denmark (DTU)
    Internet address


    • Synchrophasor
    • PMU
    • Wide Area Monitoring
    • System Security
    • Control Room Application
    • Visualization


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