Evaluation of HVDC interconnection models for considering its impact in real-time voltage stability assessment

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An approach to evaluate the HVDC interconnectionsmodels to be used in real-time voltage stability assessment is proposed.The existing models for the HVDC interconnections, thatare based on voltage source converter, were studied selecting theones that are suitable for its application in Thevenin equivalent ´methods for voltage stability assessment. The proposed methodis to evaluate the validity of the models by using synthetizedPMU measurements from simulations and from PMUs connectedto the danish system. Wide-area measurements are used toestimate the HVDC model parameters which are needed tocalculate a distance to the instability boundary. The parametersare benchmarked according to their expected uncertainty andits impact in the Thevenin equivalent methods is evaluated. The ´results show the used pre-processing procedure for the real PMUmeasurements and simple criterion for the evaluation of theparameter validity. The parameters calculated for all the selectedmodels are between the expected uncertainty values for a timewindow of at least 2 cycles.
Original languageEnglish
Title of host publicationProceedings of MEPS 2015
Number of pages6
Publication date2015
ISBN (Print)978-1-5090-3101-6
Publication statusPublished - 2015
EventModern Electric Power Systems 2015 - Congress Center of WUT , Wroclaw, Poland
Duration: 6 Jul 20159 Jul 2015


ConferenceModern Electric Power Systems 2015
LocationCongress Center of WUT


  • HVDC
  • Voltage Stability
  • PMU
  • Real-time assessment
  • Uncertainty

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