Local Frequency-Based Estimation of the Rate of Change of Frequency of the Center of Inertia

Sadegh Azizi, Mingyu Sun, Gaoyuan Liu, Vladimir Terzija

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

This letter proposes a novel technique for estimating the rate of change of frequency (RoCoF) of the center of inertia (CoI) in power systems. To offer a holistic picture of the system's frequency response, the proposed technique requires local frequency at the point of measurement, only. This enables the local estimation of active power deficit following a loss of generation (LoG) event, thus facilitating fast and effective remedial action. Extensive simulations conducted verify the effectiveness and applicability of the proposed technique.

Original languageEnglish
Article number9162502
Pages (from-to)4948-4951
Number of pages4
JournalIEEE Transactions on Power Systems
Volume35
Issue number6
DOIs
Publication statusPublished - Nov 2020
Externally publishedYes

Keywords

  • Center of inertia (CoI)
  • frequency
  • inflection points
  • rate of change of frequency (RoCoF)

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