Optimal Short-Term Planning for Distribution Power Systems

This article presents a mathematical formulation for optimizing short-term investment planning in distribution networks considering the integration of distributed energy resources. Among the investment possibilities designed to enforce the security and quality of energy supply, we consider the installation of fixed and switched capacitor banks, voltage regulators, and line reconductoring. The distributed energy resources considered are dispatchable and non-dispatchable distributed generators, in addition to energy storage systems. The proposal is formulated as an instance of mixed-integer linear programming to maximize the cost-effectiveness of investment actions. The formulation is validated for a 135-bus system and presents a solution with cost-effectiveness superior to those found using other formulations available in the specific literature.