A Decision Support Framework for Resilience-Oriented Cost-Effective Distributed Generation Expansion in Power Systems

摘要

Resilience of electricity grids to rare but severely disruptive events, such as natural disasters, has emerged in recent years as the most important aspect in power system planning. This paper presents a novel approach to enhance the resilience of a system by leveraging the distributed nature of solar photovoltaic (PV) and battery energy storage system (BESS) resources. The proposed decision-making framework uses analytic hierarchy process (AHP) to evaluate different possible allocations of PV and BESS resources for multiple contingencies based on resilience enhancement and cost. The trade-off between cost and resilience is modeled via cost-effectiveness analysis (CEA) that indicates the preferability of each allocation plan. The main contribution of this paper is the development of an adaptable and computationally feasible decision support framework to determine costeffective configurations of PV arrays and BESSs for mitigating the effects of transmission line outage contingencies. To evaluate the proposed framework, a case study is carried out on the IEEE 33-bus radial distribution system. The results show that the proposed method can offer effective guidance to the planner for making informed decisions about spending resources and achieving cost-effective resilience enhancement.