Optimal Network Reconfiguration for Real Power Losses Reduction in the IEEE 33-Bus Radial Distribution System

Abstract

<p>This article reports on the development and evaluation of a proposed optimal network reconfiguration approach for total real power losses reduction in radial distribution systems. The proposed approach was developed in MATLAB and the IEEE 33-bus radial distribution system was used in evaluating its performance. Application of the developed approach on the IEEE 33-bus radial distribution system helped to reduce the total real power losses of the system by 76.31%, from 202.68 kW to 48.02 kW, whereas the best approaches reported in literature reduced the losses by 31.15%, from 202.68 kW to 139.55 kW. These results suggest that the approaches reported in literature fail to find the global optimum combination of tie and sectionalizing branches whose corresponding switches have to be closed and opened, respectively, in order to minimize the total real power losses in the system. Consequently, due to its significant reduction of the system's total real power losses, the developed approach proves to be a potentially reliable tool for power system operators to adopt and use when solving the radial tribution systems' optimal network reconfiguration problem for real power losses reduction.</p>

Optimal Network Reconfiguration for Real Power Losses Reduction using Sparrow Search Algorithm

“…In this article, a new Sparrow Search Algorithm-based optimal network reconfiguration approach has been introduced and evaluated. Development of the approach was inspired by a very recent study [9] whose results for the IEEE 33-bus radial distribution system highlighted accuracy related shortcomings of existing approaches. The developed new optimal network reconfiguration approach was evaluated by using it to reconfigure the IEEE 33-and 69-bus radial distribution systems with the aim of minimizing the systems' total real power losses.…”

“…-For each permutation, delete from subsequent loops all the branches that appear in the preceding loops. This is done to ensure that, for each permutation, the branches in each loop are different from those found in the other loops [9].…”

“…According to Mtonga et al [9], the works reviewed above did not consider an exhaustively generated search space of branch loop permutations from which to search for the optimal branches to be opened or switched off in order to minimize the total real power losses when solving the optimal network reconfiguration problem. Consequently, the authors introduced an optimal network reconfiguration approach that considered Optimal Network Reconfiguration for Real Power Losses Reduction using Sparrow Search Algorithm…”