Coordination of protection and operation in micro-grids with inverter based distributed generation using SAOA

Mohammad Hassan Tanha, Majid Gandomkar and Javad Nikoukar

PLOS ONE, 2024, vol. 19, issue 10, 1-20

Abstract: In the proposed protection coordination scheme, the depreciation of the operation time of the entire relay in the primary and backup protection modes for all possible fault locations is considered as the objective function. The limitations of this problem include the equations for calculating the operation time of the relays in both forward and reverse directions, the limitation of the coordination time interval, the limitation of the setting parameters of the proposed relays, the restriction of the size of the reactance that limits the fault current, and the limitation of the standing time of distributed generation per small signal fault. The operation time of the relays depends on the short circuit current passing through them, so it is necessary to calculate the network variables before the fault occurs. For this purpose, optimal daily power distribution should be used in the micro-grid, because micro-grids consist of storage and renewable resources. The proposed plan includes the uncertainties of consumption and generation capacity of renewable resources. Then, to achieve a reliable answer with a low standard deviation, the refrigeration optimization algorithm is used to solve the proposed problem. Finally, the proposed design is implemented on the standard test system in the MATLAB software, and then the capabilities of the proposed design are examined.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0311584

DOI: 10.1371/journal.pone.0311584

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