Control Strategy for Line Overload and Short Circuit Current of Networked Distribution Systems

Junwoo Lee, Wookyu Chae, Woohyun Kim, Sungyun Choi

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    The expected increase in renewable energy sources (RESs) and electric vehicles (EVs) connected to distribution systems will result in many technical constraints. A meshed network is a promising solution; however, some remarkable challenges must be overcome. Among these, this paper mainly focuses on the line overload and short circuit current of a networked distribution system (NDS) in Korea, an advanced form of meshed network. An NDS refers to a system in which there exists permanent linkages between four feeders and N × N communication-based protection. We propose a method, which employs the tap changing control algorithm of the series reactor to control line overload and short circuit current. MATLAB/Simulink was used to evaluate the proposed method. Three different types of distribution system were employed. First, the utilization rate and feeder imbalance were analyzed in steady-state condition. Subsequently, the short circuit current was analyzed in short circuit condition. The results revealed that the proposed method can effectively prevent line overload in up to 82.7% of cases, enhance the utilization rate by up to 79.9%, and relieve the short circuit current; that is, it can contribute to system stability and the economic operation of an NDS.

    Original languageEnglish
    Article number4208
    JournalSustainability (Switzerland)
    Volume14
    Issue number7
    DOIs
    Publication statusPublished - 2022 Apr 1

    Bibliographical note

    Publisher Copyright:
    © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

    Keywords

    • feeder imbalance
    • meshed network
    • networked distribution system (NDS)
    • radial distribution system (RDS)
    • series reactor
    • short circuit current
    • utilization rate

    ASJC Scopus subject areas

    • Computer Science (miscellaneous)
    • Geography, Planning and Development
    • Renewable Energy, Sustainability and the Environment
    • Building and Construction
    • Environmental Science (miscellaneous)
    • Energy Engineering and Power Technology
    • Hardware and Architecture
    • Computer Networks and Communications
    • Management, Monitoring, Policy and Law

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