Enhancing Resilience of Urban Electric-Road-Metro Interdependent Network Considering Electric Bus Scheduling

Abstract

With the increasing electrification of urban transportation, urban power and traffic systems are highly coupled and influence each other, leading to a challenge for the post-event resilience enhancement of urban electric-traffic interdependent network (ETIN). In this context, we propose a multi-layer electric-metro-road interdependent network where the metro network (MN) depends on the distribution power network (DPN) and interacts with the road traffic network (RTN) synchronously. Electric buses (EBs), as one public dispatchable resource, are considered and explored to provide bridging routes for disabled MNs and supply power for failed DPNs, with consideration of three different service trips, i.e., the original trip, bridging trip, and charge-discharge trip. On this basis, a spatio-temporal network-based EB route schedule model is constructed. To consider the evacuation demand of affected MN routes, a fast DPN restoration strategy is proposed to minimize the time cost of lost load by integrating the network reconfiguration with the collaborative allocation of repair crews (RCs) and EBs. Finally, a distributed method is further devised for the coordination among different stakeholders. The proposed method is verified on two electric-traffic systems to show that the collaborative scheduling of RCs and EBs can effectively enhance the resilience of ETIN under metro service disruptions.