Optimizing Distribution Network Reconfiguration to Minimize the Time Dial Setting of Overcurrent Relays

This paper explores the optimization of distribution network reconfiguration to minimize the time dial setting of overcurrent relays, essential for improving protection and reliability in power systems. The study focuses on employing advanced optimization techniques to enhance network efficiency. Specifically, the proposed modified sine cosine algorithm (MSCA) is investigated and compared against conventional methods. Results demonstrate that MSCA consistently achieves superior performance across critical metrics including significant reductions in power losses, improved system stability, and optimized voltage profiles. For instance, MSCA achieves a notable 16% reduction in power losses and enhances system stability by 22%, demonstrating its effectiveness in optimizing network operation. Simulations conducted on both 33-bus and 119-bus IEEE network configurations validate the robustness and versatility of MSCA in diverse network environments. These findings underscore the practical applicability of MSCA in modern power systems, offering tangible benefits in terms of efficiency, reliability, and operational flexibility. The research provides valuable insights for power system engineers and researchers seeking to implement advanced optimization strategies to address challenges in network reconfiguration and enhance overall system performance.