Optimal Selection of Conductors in Three-Phase Distribution Networks Using a Discrete Version of the Vortex Search Algorithm

In this study, a new methodology is proposed to perform optimal selection of conductors in three-phase distribution networks through discrete version the metaheuristic method vortex search. To represent problem, single-objective mathematical model with mixed-integer nonlinear programming (MINLP) structure used. As an objective function, minimization investment costs together technical losses network for study period one year considered. Additionally, will be implemented balanced and unbalanced test systems variations connection their loads, i.e., Δ- Y-connections. evaluate energy losses, classical backward/forward power-flow implemented. Two used specialized literature were employed, which comprise 8 27 nodes radial structures medium voltage levels. All computational implementations developed MATLAB environment, all results evaluated DigSILENT software verify effectiveness method. Comparative analyses Chu & Beasley genetic algorithms, tabu search algorithm, exact MINLP approaches demonstrate efficiency optimization approach regarding final value function.