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

The result's identifiers

  • Result code in 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>

  • Result on the web

    <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>

Alternative languages

  • Result language

    angličtina

  • Original language name

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

  • Original language description

    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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    APPLIED SOFT COMPUTING

  • ISSN

    1568-4946

  • e-ISSN

  • Volume of the periodical

    98

  • Issue of the periodical within the volume

    January 2021

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    21

  • Pages from-to

    1-21

  • UT code for WoS article

    000603366400018

  • EID of the result in the Scopus database

    2-s2.0-85091711103