Risk assessment for the cascading failure of electric cyber-physical system considering multiple information factors

IET Cyber-Physical Systems

Dongxu Lu¹  Kai Hou²  Yanli Liu²  Yuan Zeng²  Tianyuan Bai²  Liangchen Deng² 

[1] ;Tianjin University;

关键词: risk management;    cyber-physical systems;    information systems;    power engineering computing;    power system reliability;    smart power grids;    cascading failure;    electric cyber-physical system;    multiple information factors;    risk assessment approach;    ECPS;    personnel factors;    information system;    reliability model;    physical component;    expected energy;    risk indices;    optimal power communication network topology;    power grid;   

DOI  :  10.1049/iet-cps.2017.0002

来源: DOAJ

【 摘 要 】

A risk assessment approach for the cascading failure of electric cyber-physical system (ECPS) considering multiple information factors is proposed. First, considering hardware, software and personnel factors existing in the information system, the reliability model of the control function of the information system is established. Second, the reliability model of the physical component considering the control function of the information system is established. Finally, the risk assessment approach for the cascading failure of ECPS is introduced, and the probability of the cascading failure and the expected energy not supplied are used as the risk indices. Test results on an improved RTS-79 system show the effectiveness and significance of the method for choosing the optimal power communication network topology and the measures to reduce the risk.

【 授权许可】

Unknown