Distribution Network Planning Considering loss with new linearization expression

This paper summarizes the distribution network planning technology equipped with distributed generators (DGs), and proposes a distribution network planning method in which the capacities of DGs and distribution lines are simultaneously optimized. The proposed model tries to minimize the total cost which includes the investment cost and operation cost. In addition, this paper analyzes the influence of network loss, and a new loss linearization method is proposed. Finally the planning model belongs to a mixed integer linear programming problem. To validate its effectiveness and superiority, the proposed distribution network planning model is tested on the IEEE 33-bus distribution network system.