Online decomposed optimal outage management after natural disasters

摘要

This paper proposes an online decomposed optimization method for the outage management of power distribution systems. The paper develops an algorithm that optimally dispatches repair crews to damaged components as well as operates distributed generators (DGs) and automatic switches. The first part of this paper discusses co-optimization of repair crew routing and DG/switch operations. A mixed integer linear program (MILP) model is formulated to co-optimize the two problems. Although direct co-optimization would lead to the best routing and operation strategy, it is difficult to achieve an optimal solution within a reasonable time due to the computational complexity. Furthermore, the network damage states are dynamic as the damaged components are repaired. Therefore, we propose a decomposed online method to solve the co-optimization problem. The proposed method is tested on a modified IEEE 123-bus distribution test system with multiple damages.