A study of the application of fast valving and braking resistor for an intelligent SPS

Dong Hee Yoon, Gilsoo Jang, Young Hwan Moon

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


There are some kinds of remedial action schemes that deal with sudden disturbance situations in a transmission network. Generator tripping with an SPS (Special Protection System) is one of the remedial action schemes, and it is a powerful and effective method of solving transient stability problems. When an extra-high-voltage transmission line that is transferring a large amount of power is tripped, generators designated by a SPS are tripped to prevent over-speeding of the generators. However, the tripping of generators can cause difficulties in the power system operation, and if large amounts of power are tripped, load shedding can occur. Therefore, it is desirable that a minimum number of generators is tripped in required stable conditions. For this purpose, an intelligent SPS is currently being developed to reduce the number of generator tripping events. In this paper, an application method involving fast valving and a braking resistor are analyzed as suitable action schemes for a SPS.

Original languageEnglish
Pages (from-to)818-823
Number of pages6
JournalInternational Journal of Electrical Power and Energy Systems
Publication statusPublished - 2013

Bibliographical note

Funding Information:
This work was supported by the Original Technology Development program and the Human Resources Development program (No. 20114010203010) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy.


  • Braking resistor
  • Fast valving
  • Generator tripping
  • Intelligent SPS
  • Transient stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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