A modelling method for overvoltage and overload fault propagation in distribution cyber-physical systems

Abstract The introduction of communication networks in modern power systems also brings new security issues into traditional power grids. Compared with cascading failures in a single power network, the analysis of cascading failures in information-physical coupling networks is more complex. To analyze the complex cyber-physical coupling network cascading faults, this paper proposes a multi-layer distribution network cyber-physical system. Based on this model, the possible impact on the communication side nodes after overvoltage and overload faults occur on the physical side distribution network is analyzed, forming a cyber-physical-cyber cascading fault propagation analysis method.