Redução do número de ações de controle no problema de Fluxo de Potência Ótimo Reativo Discreto

This paper proposes a new formulation for Discrete Reactive Optimal Power Flow problems (DROPF) that aims at reducing the number of control actions of the problem. For such a purpose, complementarity constraints are introduced in the DROPF model so as to represent specific behaviors of voltage control devices in the electrical system. These behaviors involve the actuation of a control device only when the voltage magnitude limit of the bus controlled by such device is effectively reached. The proposed  DROPF model extended with complementarity constraints for handling these specific behavior aspects of control actions is solved by the branch-and-bound method implemented by the free solver BONMIN. Numerical tests performed using the IEEE 14-, 30- and 118-bus electrical systems demonstrate the efficiency of the proposed model. The results are compared with the ones obtained by a classical DROPF.