Using Swarm Intelligence Algorithm for Symmetrization of Electric Networks

This paper studies the possibility of optimizing symmetrical switching of phase loads using a simulation model of a 0.4 kV transmission line with distributed load. The optimal scheme of the electric network is determined by the order of connection of all consumers to specific phases at each transmission line support, providing minimum active power losses in the network. Any change in the scheme requires a new calculation of power losses in an asymmetrical network with loads distributed along the length of the transmission line. Thus, without the use of mathematical methods, it is not possible to enumerate all possible variants of the scheme with power loss calculations. The authors present a methodology and algorithm for determining the optimal symmetrical scheme of an electric network for determining the optimal switching at symmetrization of phase loads on the basis of the Swarm of Particles method. An example of calculation of power losses for an electric network with distributed consumers by phases using this algorithm, before optimization of symmetrical switching of phase loads and after it is given. The practical development of the proposed method of optimization of symmetrical switching of phase loads on the basis of the algorithm of particle swarm with distributed load is shown for the subsequent creation of software for automatic system of symmetrical switching of 0.4 kV electrical networks.