Evaluating Electricity Distribution Network Reconfiguration to Minimize Power Loss on Existing Networks

Abstract

This paper applies the distribution network reconfiguration problem to existing networks. The medium voltage distribution network of the Dutch DSO Alliander is operated using a radial topology. By optimizing this topology it is possible to reduce the energy losses caused by the cable impedances. Various solutions algorithms have been compared for this distribution network reconfiguration problem, while taking into account network capacity and voltage levels. A Genetic algorithm combined with a Greedy demeshing starting condition yields the best results. Applying the algorithm on real life distribution networks shows with 226 buses and 406 buses yield a reduction in power losses of 15% and 27% respectively.

Single-Loop Optimization for Losses Minimization in Medium-Voltage Power Distribution System

“…so that the total power losses of the considered line containing n buses can be represented by Eq. (8).…”

“…Some researchers have attempted to minimize the power losses of the system by formulating the problem as a matter of reconfiguring the distribution network [2]- [14]. Initial works on the network reconfiguration to reduce the losses was presented in [4]- [8]. The proposed solution was started from the distribution system mesh, which had been previously obtained by assuming all switches to be closed and opened sequentially to eliminate the loop.…”