Grid-adaptive equivalencing of power system for generator tripping

Daham Min, Kyeon Hur, Seog Joo Kim

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


This paper presents a practical yet accurate equivalencing method of power system for an online transient stability assessment. The proposed vector composition method effectively aggregates the multiple generators and transmission lines of the power system, and develops a grid-adaptive equivalent for which well-established analysis technique can be applied to assess the power system stability. It thus allows for activating preventive or corrective measures on time to stabilize the system in emergency. The parameters of the equivalent can be refined using the synchronized measurement data, and the transient stability margin can be updated. The efficacy and accuracy are validated for a multi-machine infinite bus system, and the utility planning model of Korea electric power system where an equal area criterion and the generator tripping are employed for assessing the stability and stabilizing action as specified in the special protection schemes for the Korea electric power system.

Original languageEnglish
Article number6939422
JournalIEEE Power and Energy Society General Meeting
Issue numberOctober
Publication statusPublished - 2014 Oct 29
Event2014 IEEE Power and Energy Society General Meeting - National Harbor, United States
Duration: 2014 Jul 272014 Jul 31

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering


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