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Inter-area oscillations in the 500-kV Vietnamese power system

  • Autori: Quang N.N.; Le Thi Thuy H.; Bui L.D.; Di Silvestre M.L.; Favuzza S.; Musca R.; Riva Sanseverino E.; Zizzo G.
  • Anno di pubblicazione: 2019
  • Tipologia: Contributo in atti di convegno pubblicato in volume
  • Parole Chiave: dynamic analysis; Inter-area oscillations; small signal stability; transient stability; Vietnamese power system
  • OA Link:


The paper presents the study of the 500-kV Vietnamese power system. The oscillatory response of the system is analyzed both with a modal analysis and a time domain analysis. The 500-kV system of Vietnam is modeled in details, including all the power plants with the corresponding regulators. The model is developed in collaboration with the Institute of Energy Science IES-VAST of Vietnam and it is validated with the data provided by the National Load Dispatch Centre (NLDC) of Vietnam. The simulation results reveal a clear identification of potential inter-area oscillations between North and South of the Country. A worsening of the observed phenomenon should be considered as possible, especially in the perspective of the new installation of a significant amount of power from renewable sources into the Vietnamese system.