A mixed-integer LP model for the optimal allocation of voltage regulators and capacitors in radial distribution systems

This paper presents a mixed-integer linear programming model to solve the problem of allocating voltage regulators and fixed or switched capacitors (VRCs) in radial distribution systems. The use of a mixed-integer linear model guarantees convergence to optimality using existing optimization software. In the proposed model, the steady-state operation of the radial distribution system is modeled through linear expressions. The results of one test system and one real distribution system are presented in order to show the accuracy as well as the efficiency of the proposed solution technique. An heuristic to obtain the Pareto front for the multiobjective VRCs allocation problem is also presented.

► A MILP model to solve the voltage regulators and capacitors allocation is proposed. ► The proposed model presents an efficient computational behavior with MILP solvers. ► The proposed model evaluates the set of equipments most appropriate to be installed. ► The Pareto front for the proposed problem is easily found using a heuristic. ► The proposed model found a better solution for a real distribution system.