Shahid Beheshti University International Journal of Research and Technology in Electrical Industry 2821-0190 2 1 2023 01 01 Power Distribution Grid Reliability Assessment Considering Protection and Control Devices’ Optimal Post-Fault Operation 12 20 102223 10.52547/ijrtei.1.1.1 EN Ali Jalilian Kermanshah Power Electrical Distribution Company (KPEDC), Kermanshah, Iran. 0009-0006-5048-640X Milad Mohamadyari Electrical Engineering Department, Tehran University, Tehran, Iran Homayun Rahimi Kermanshah Power Electrical Distribution Company (KPEDC), Kermanshah, Iran. Majid Karami Kermanshah Power Electrical Distribution Company (KPEDC), Kermanshah, Iran. Journal Article 2022 11 23 The reliability level of the distribution network is a judgment tool of the grid and protection design quality, the effectiveness of the fault management unit, and customers’ satisfaction. In this paper, a new approach is presented to evaluate common reliability indices namely ENS, SAIDI, SAIFI, MAIFIe, etc., while reliability improvement via optimal post-fault restoration describes the coordinated operation of various protection and control devices in temporary and permanent fault event conditions. Customers’ outage times are calculated considering different switching operation times to capture manual operation issues, e.g., traffic level, geographical issues, fuse replacements, etc. The optimal service restoration scheme being formulated in a mixed-integer linear programming (MILP) fashion is constrained to network technical limitations, e.g., line thermal capacity, load points voltage level, DG units’ parameters, and island operation. Performance of the proposed framework is verified in IEEE 33-bus test system. https://ijrtei.sbu.ac.ir/article_102223_d1da90a5c8aca074c56707fe60978a3b.pdf