Feeder reconfiguration with dispatchable distributed generators in distribution system by tabu search

This paper presents a feeder reconfiguration problem to the distribution system with dispatchable distributed generators. The feeder configuration of the system and the dispatch of the distributed generators are two problems that need to be considered. A tabu search algorithm is applied to search for the on/off patterns of the sectionalizing switches and tie switches to obtain the minimum total power loss, whereas the dispatch schedule of the distributed generators which gives the minimum total cost of generation is solved by an optimal power flow. The developed methodology is demonstrated by a 69-bus radial distribution system with distributed generators. The study results show that the optimal on/off patterns of the switches and the optimal dispatch schedule of the distributed generators can give the minimum total cost of generation while satisfying the system operational constraints and benefiting from savings in reduction of power loss and generation cost.