Loss minimum re-configuration of distribution system by tabu search

This paper proposes a loss minimum reconfiguration method by tabu search for open loop radial distribution system with distributed generators. The problem is to find the optimal normal open sectionalizing switch positions which minimize the total distribution loss subject to the constraints of line/transformer capacity limit and voltage limit. In the solution algorithm, section load is assumed to be uniformly distributed balanced constant current load. This problem is formulated as a complex combinational optimization problem or a mixed integer programming problem. The reverse power flow caused by distributed generators can be included in the solution algorithm. In order to demonstrate the validity and efficiency of the algorithm, several numerical examples are shown.