Restoration Method for Active Distribution Networks Considering Black Start

Avoiding outage events is impossible, as they may be caused by planned or random situations. In this sense, great effort has been put into developing techniques for designing and operating more reliable power systems capable of efficiently resupplying the loads in the face of power interruption situations. This paper is inserted in the restoration process context in modern distribution networks, aiming to minimize out-of-service loads due to permanent faults. The proposed method employs two metaheuristics to provide the user with feasible restoration plans. Considering a practical perspective, the proposed methodology presents an optimized sequence of maneuvers guaranteeing the feasibility of intermediate solutions. We test the proposed method for a 405-bus system. Analysis of the algorithm's behavior shows its convergence capacity, while a time-domain simulation demonstrates the method's efficiency in providing good quality feasible restoration plans.