A Comparative Study of Holistic Expansion Planning using Osprey Optimization Algorithm for Modern Active Electric Distribution Networks

The growing complexity and evolving requirements of Modern Active Electric Distribution Networks (MAEDNs) necessitate a paradigm shift in Expansion Planning (EP) methodologies. Conventional Expansion Planning (CEP) approaches primarily focused on Substation Construction/Reinforcement (SCR) and Circuits Expansion/Reinforcement (CER) often fall short in addressing the challenges of MAEDNs. This pioneering study introduces a novel Holistic Expansion Planning (HEP) framework moving beyond CEP, marking a significant advancement in EP for MAEDNs. The proposed HEP framework integrates SCR, CER, Capacitor Banks (CBs), Voltage Regulators (VRs), and Distributed Generators (DGs) into a unified optimization process. This comprehensive approach leverages the power of the Osprey Optimization Algorithm (OOA), inspired by the hunting behavior of ospreys, to efficiently solve the non-linear optimization problem associated with optimal EP strategies. The OOA’s unique capabilities contribute to the innovative nature of the HEP framework. The HEP aims to minimize total costs while optimizing EP strategies for EDNs. It considers both installation costs of SCR, CER, CBs, VRs, and DGs, along with operational costs associated with power losses. The effectiveness of HEP is rigorously evaluated through a series of case studies conducted on a 24-bus system. The results demonstrate the superiority of HEP compared to conventional SCR and CER approaches. HEP consistently identifies more cost-effective and efficient EP strategies while achieving improved voltage regulation and reduced power losses. This groundbreaking approach to HEP empowers engineers to identify optimal EP strategies for MAEDNs that meet system requirements, optimize resource allocation, and enhance overall network performance. HEP paves the way for a more efficient and sustainable future for MAEDNs.