Performance Evaluation of Coherency Identification Methods in Frequency Stability Analysis Based on A Novel Assessment Index

Jiaxin Wen, Siqi Bus

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The injection of renewable energy brings a big uncertainty to the modern power system, which would have a detrimental influence on the frequency stability. The fluctuating frequency from a specific wind farm is difficult to be represented by system average frequency due to uneven inertia distribution in the system. In order to deal with this issue, the coherency identification is applied to separate the system into a few areas and then further research is conducted. In terms of frequency stability analysis, two factors are often concerned: the rate of change of frequency (RoCoF) and frequency nadir/vertex (FN/FV). Therefore, this paper proposes a novel assessment index, i.e. Max Spatial Distribution Ratio of System Frequency Response (MaDSR), suitable for these two factors to evaluate the effects of the coherent results based on a new concept, Area Frequency Response Center (AFRC). To test the effectiveness of the index, slow coherency identification method is selected to divide a modified IEEE 16machine 68 bus with additional installation of wind farms.

Original languageEnglish
Title of host publicationProceedings of 2018 IEEE 2nd International Electrical and Energy Conference, CIEEC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages132-137
Number of pages6
ISBN (Electronic)9781538653913
DOIs
Publication statusPublished - Nov 2018
Event2nd IEEE International Electrical and Energy Conference, CIEEC 2018 - Beijing, China
Duration: 4 Nov 20186 Nov 2018

Publication series

NameProceedings of 2018 IEEE 2nd International Electrical and Energy Conference, CIEEC 2018

Conference

Conference2nd IEEE International Electrical and Energy Conference, CIEEC 2018
CountryChina
CityBeijing
Period4/11/186/11/18

Keywords

  • Area Frequency Response Center (AFRC)
  • frequency nadir/vertex (FN/FV)
  • Max System Frequency Deviation Rate (MSFDR)
  • rate of change of frequency (RoCoF)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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