This work presents a parameterized formulation of the Optimal Power Flow (OPF) problem, which aims at avoiding the divergence of the OPF iterative process. The objective function of the modified optimisation problem is given by the weighted sum of the original performance index to be optimized with the parameter applied to adjust the demand and/or limits. The proposed methodology provides indication of the potential causes of the non-convergence and the possible actions that could be taken to determine an operational solution. If the originally specified demand can be supplied satisfying the operational limits without load/limits adjustments, the proposed methodology determines the conventional OPF solution. Numerical results obtained with test systems of 6, 118 and 750 buses illustrate the application of the proposed strategy.
Optimal Power Flow; Parameterization; Interior Point Method
