Optimal radial distribution network reconfiguration based on multi objective differential evolution algorithm

Abstract

The grid is hierarchical in three parts whose functions are quite different. First, the transmission system's role is to transport energy into high voltage from production centers to consumption areas and distribution network directly supplies large industrial consumers and supplying the average and low voltage consumers, with the latest advances in industry and Technological the need for electricity is increasing. These developments require the development of distribution network to optimize the balance between supply and demand. A very large part of the power losses and deviation voltage problems in power systems are assigned to distribution network, where power losses are estimated at 14 %. So, this paper investigates the use of the multi objective Differential Evolution algorithms developed by Matlab to find the optimal distribution network reconfiguration minimizing power losses and improve voltage deviation. To test the effectiveness of the proposed algorithm, three IEEE distribution systems respectively 33 buses, 69 busses and 123 busses are used for two objectives functions and the results are being compared.