Resilience assessment of multi-decision complex energy interconnection system

Abstract

In order to study the resilience and dynamic behaviors of multi-decision complex energy interconnected system under malicious attack, this paper proposes a resilience evaluation method based on system dynamics theory. First, the dynamic characteristics of complex energy interconnected system under extreme events are analyzed. Considering the effects of damage propagation and feedback iteration, the resilience assessment index framework and model for complex energy interconnection system are established. Then, based on system dynamics, the dynamic simulation diagram and the response model of the complex energy interconnection system facing extreme events is built, which describes the interactions among and within subsystems. Further, a resilience evaluation method is addressed. Finally, the case study verifies the effectiveness of the method. It can be concluded: (1) the energy coupling between subsystems will cause cascading effects; (2) the vulnerability of subsystems and the uncoordinated response rules are the vital factors that promote the emergence of the system; (3) as the core of the energy interconnected system, the power transmission subsystem will suffer extensive impact if it is attacked.