Research on Assessment of Cyber Attack Risk Conduction in Distributed Photovoltaic Contained Distribution System

Cyber attacks can threaten the stable operation of distributed PV-containing distribution systems, so this paper proposes a cyber attack risk conduction assessment method. First,typical cyber-attack paths against distributed PV-containing distribution systems are described. Second,attack risk conduction probability of different paths using Petri nets are quantified, taking into account the security protection devices on the information side of the system. Finally, the network centrality theory is considered to assess the probability of an attack penetrating a specific topological location of a PV plant station, and the results show that the cyber attack paths and physical layer device topologies are important factors affecting the probability of success of the attack.