A Fast Method of Removing Infeasible Solutions for Distribution Systems Reconfiguration

Abstract

Network reconfiguration technology is one of the most important means to realize the self-healing control function of intelligent distribution network, and the key point of which is avoiding infeasible solution. This paper puts forward the concept of branch groups and analyse the defects of existing network reconfiguration algorithm according to the requirements of the distribution network and the characteristics of the harmony algorithm. The system topology is coded so that it can be effectively integrated with the intelligent optimization algorithm. Taking the harmony algorithm as an example, this paper gives the implementation steps of the algorithm and the four branch break rules. IEEE 33-node system example results show that this paper summarizes the situation of infeasible solutions into five kinds, which improves the search efficiency compared to the existing method. At the same time, it avoids missing viable solutions and ensures the spatial completeness of solutions. It effectively improves the speed of network reconfiguration and the search ability of global optimal solution. 