20.500.12556/DKUM-96872 Assessment of an overcurrent protection strategy based on thermal stress curves in distribution networks under reconfiguration scenarios Network reconfiguration enables the restoration of power supply in interrupted areas after faults or planned maintenance events. However, changes in network topology can often lead to alteration in the direction and magnitude of fault currents, undermining the coordination of overcurrent relays. In response to this challenge, adaptive protection systems have been developed that utilise system-wide communication to recalibrate relays dynamically. However, implementing system-wide communication comes with significant economic burdens, data integrity concerns and infrastructure limitations, especially in underdeveloped communities. In this study, the analysis of the overcurrent protection strategy based on thermal stress curves is conducted, to validate the appropriateness of the relay settings for a reconfigurable distribution network. The methodology was demonstrated on a test distribution system utilising directional overcurrent relays. The results demonstrate that the proposed protection strategy offers a simple and cost-effective means to enhance the effectiveness of power system protection within a reconfigurable grid. Consequently, this method presents an alternative to the concept of adaptive protection. distribution network reconfiguration overcurrent relay thermal stress curve distribucijsko omrežje nadtokovni releji krivulja tokovne napetosti true false true Institute of Electrical and Electronics Engineers (IEEE) Angleški jezik Slovenski jezik https://ieeexplore.ieee.org/ © 2024 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ Članek v reviji 2026-01-30 14:46:26 2026-01-30 14:46:27 2026-01-31 03:16:04 0000-00-00 00:00:00 2024 0 0 str. 98270-98284 Vol. 12 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-06-26 2024-07-10 2024-07-24 621.31 204774147 10.1109/ACCESS.2024.3427354 2169-3536 Assessment_of_an_Overcurrent_Protection_Strategy_Based_on_Thermal_Stress_Curves_in_Distribution_Networks_Under_Reconfiguration_Scenarios.pdf Assessment_of_an_Overcurrent_Protection_Strategy_Based_on_Thermal_Stress_Curves_in_Distribution_Networks_Under_Reconfiguration_Scenarios.pdf 1 417B9D0880503FF747536A4EA5B006E5 e4e55d200731c815b1d9aff97c40bc29a6f09fcbe550c5e7df27ab00d4b42ea3 6e5bf3e7-fde3-11f0-8805-00155d00018d https://dk.um.si/Dokument.php?lang=slv&id=202871 https://ieeexplore.ieee.org/document/10596276 0 77a11deb-fde3-11f0-8805-00155d00018d https://dk.um.si/Dokument.php?lang=slv&id=202872 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0