Optimized distribution network reconfiguration using hybrid OPF and graph theory techniques
Year: 2025
Type: article
Abstract: The proposed work aims to assess the reduction in power losses and better voltage profiles in network reconfiguration through a hybrid approach that combines Optimal Power Flow (OPF) and graph theory for static power source. The layout of a distribution network can be modified by opening or closing ties and sectionalizing. The OPF is conducted on the IEEE 30-node system using optimization methodologies such as the Interior Point Method, Sequential Quadratic Programming, and Active Set methods. Feasible radial topologies are obtained through Prim?s Maximal Spanning Tree algorithm, using the parameters obtained through the OPF methodologies. This approach eliminates the need for a tedious mesh check for an IEEE 30-node system. To validate the proposed methodology, the results were compared with those of the Social Spider Optimization (SSO), Edmonds' Maximal Spanning Tree algorithm, and Kruskal?s maximal spanning tree algorithm. Simulation results for the IEEE 30-node model confirm the effectiveness of Prim?s Maximal Spanning Tree algorithm, particularly when OPF is conducted using the Interior Point Method. Results shows that Prim?s maximal spanning tree- based interior point methods outperformed the other methods with 0.71938 p.u. active power loss, 2.0062 p.u. reactive power loss voltage stability index of 0.1457 p.u., showing strong resilience against voltage fluctuations. The study is carried out using MATLsoftware (2020 version) and MATLAB- based Power System Analysis Toolbox (PSAT) for programming and analysis.
DOI: 10.2298/fuee2503487k
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415463575