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Optimal microgrid´s protection coordination considering N-1 contingency and optimum relay characteristics

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F21%3A43961949" target="_blank" >RIV/49777513:23220/21:43961949 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://www.sciencedirect.com/science/article/pii/S1568494620306797#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1568494620306797#</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.asoc.2020.106741" target="_blank" >10.1016/j.asoc.2020.106741</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Optimal microgrid´s protection coordination considering N-1 contingency and optimum relay characteristics

  • Popis výsledku v původním jazyce

    There is a knowledge gap about the development of optimal coordination of microgrids, which considers all N-1 contingencies by using the smart selection of standard relay characteristics. This paper triesto fill such a knowledge gap by contributing to introduce a novel method to optimize the coordinationof microgrids’ directional overcurrent relays (DOCRs), which smartly selects the time-current characteristic of relays and considers all system topologies. Achieving an optimal protection scheme of micro-grids without any selectivity constraint under various topologies is the main purpose of this research.The proposed objective function of total operating time of DOCRs under various system topologies islinearizedastheTDSs.Thehybridheuristic-linearprogrammingalgorithms(HHLPAs)areusedtosolvethe mixed-integer non-linear programming (MINLP) problem. The decrease in the number of heuristic algorithm’s decision variables improves the performance of the proposed HHLPAs.The soft computing-based comparison of the hybrid genetic algorithm-linear programming (GA-LP) and the hybrid particleswarm optimization-linear programming (PSO-LP) is another contribution of this paper. About 80%decrease in the DOCRs’ operating time has been achieved by applying the proposed smart selection ofstandard relay characteristics (normally inverse, very inverse, and extremely inverse) in comparisonto use of just normally inverse curve based on existing methods. The satisfaction of coordinationconstraints of optimum relay settings is validated based on the DIgSILENT protection simulations.

  • Název v anglickém jazyce

    Optimal microgrid´s protection coordination considering N-1 contingency and optimum relay characteristics

  • Popis výsledku anglicky

    There is a knowledge gap about the development of optimal coordination of microgrids, which considers all N-1 contingencies by using the smart selection of standard relay characteristics. This paper triesto fill such a knowledge gap by contributing to introduce a novel method to optimize the coordinationof microgrids’ directional overcurrent relays (DOCRs), which smartly selects the time-current characteristic of relays and considers all system topologies. Achieving an optimal protection scheme of micro-grids without any selectivity constraint under various topologies is the main purpose of this research.The proposed objective function of total operating time of DOCRs under various system topologies islinearizedastheTDSs.Thehybridheuristic-linearprogrammingalgorithms(HHLPAs)areusedtosolvethe mixed-integer non-linear programming (MINLP) problem. The decrease in the number of heuristic algorithm’s decision variables improves the performance of the proposed HHLPAs.The soft computing-based comparison of the hybrid genetic algorithm-linear programming (GA-LP) and the hybrid particleswarm optimization-linear programming (PSO-LP) is another contribution of this paper. About 80%decrease in the DOCRs’ operating time has been achieved by applying the proposed smart selection ofstandard relay characteristics (normally inverse, very inverse, and extremely inverse) in comparisonto use of just normally inverse curve based on existing methods. The satisfaction of coordinationconstraints of optimum relay settings is validated based on the DIgSILENT protection simulations.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    20201 - Electrical and electronic engineering

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2021

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    APPLIED SOFT COMPUTING

  • ISSN

    1568-4946

  • e-ISSN

  • Svazek periodika

    98

  • Číslo periodika v rámci svazku

    January 2021

  • Stát vydavatele periodika

    NL - Nizozemsko

  • Počet stran výsledku

    21

  • Strana od-do

    1-21

  • Kód UT WoS článku

    000603366400018

  • EID výsledku v databázi Scopus

    2-s2.0-85091711103