Optimal selection of conductors in radial distribution systems with time varying load

Selecting the optimum type and size of conductors for planning and optimization of distribution networks is an essential part of the design process. In this paper, a new and efficient algorithm to the optimal selection of conductors of feeder sections of radial distribution networks is proposed. In optimization procedure, cost of conducting material, cost of energy losses, bus voltage profile and current carrying capacity of conductors are considered. This algorithm is easy to programming and needs no approximation of actual condition. The proposed method can be applied for optimal planning of radial electric distribution systems. Effectiveness of the proposed method is shown by case study in a radial network.