Required capacity assessment of energy storage system for relieving operation condition of SPS using generator acceleration energy

  • Seung Heon Song
  • , Woo Yeong Choi
  • , Han Na Gwon
  • , Kyung Soo Kook*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

- Due to the highly concentrated power plants integrated through the limited transmission lines in Korea, a Special Protection System(SPS) has been applied to stabilize the power systems by instantly tripping the pre—determined generators in a large-scaled power plant when a fault occurs on the drawing transmission lines. Moreover, power outputs of those generators are constrained to avoid any activation of Under Frequency Load Shedding(UFLS) even after those generators are tripped by SPS action. For this, this paper proposes a method for calculating the required capacity of Energy Storage System(ESS) expected to relieve the operating constraints to generators using its fast response for controlling power system frequency. The proposed method uses the generator acceleration energy to derive the stable condition during the SPS action. In addition, its effectiveness is verified by the case studies adopting actual SPS operations in Korean power systems.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalTransactions of the Korean Institute of Electrical Engineers
Volume68
Issue number1
DOIs
StatePublished - 2019.01

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Energy Storage System(ESS)
  • Special Protection System(SPS)
  • Transient stability

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Electrical & Electronic
  • Engineering - Petroleum

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