Optimal service restoration of power distribution networks considering voltage regulation

This paper proposes a convex model for the optimal service restoration of power distribution networks after a permanent fault. The proposed method minimizes the out of service area providing the minimum switching actions and the tap position of the on load tap changer (OLTC) placed at the HV/MV substations subject to voltage and capacity limits of the distribution network. The nonlinear constraints of the restoration problem are transformed into second-order cone programming constraints providing a convex formulation for the service restoration problem that can be efficiently solved by commercial branch and bound solvers. The proposed method is applied to an 83-bus power distribution network to verify its effectiveness and robustness.