Interaction boundary determination of renewable energy sources to estimate system strength using the power flow tracing strategy

Namki Choi, Byongjun Lee, Dohyuk Kim, Suchul Nam

Research output: Contribution to journalArticlepeer-review

Abstract

System strength is an important concept in the integration of renewable energy sources (RESs). However, evaluating system strength is becoming more ambiguous due to the interaction of RESs. This paper proposes a novel scheme to define the actual interaction boundaries of RESs using the power flow tracing strategy. Based on the proposed method, the interaction boundaries of RESs were identified at the southwest side of Korea Electric Power Corporation (KEPCO) systems. The test results show that the proposed approach always provides the identical interaction boundaries of RESs in KEPCO systems, compared to the Electric Reliability Council of Texas (ERCOT) method. The consistent boundaries could be a guideline for power-system planners to assess more accurate system strength, considering the actual interactions of the RESs.

Original languageEnglish
Article number1569
Pages (from-to)1-13
Number of pages13
JournalSustainability (Switzerland)
Volume13
Issue number3
DOIs
Publication statusPublished - 2021 Feb 1

Keywords

  • Interaction boundary
  • Renewable energy sources
  • Short-circuit ratio
  • System strength
  • Weighted short-circuit ratio

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Management, Monitoring, Policy and Law

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