THE ANALYSYS OF INFORMATION IMPACTS IN COORDINATING DEFENCE AGAINST MALICIOUS ATTACKS FOR INTERCONNECTED POWER SYSTEMS

Abstract – In the analysis of power systems security recently a new concern related to possible malicious attacks caught much attention. Coordination among different system operators (SO) in an interconnected power system to counteract such attacks has become an important problem. This paper presents a specific model for the analysis of information impacts in handling on-line security after a malicious attack. The model is based on the socially rational multi-agent systems and the equilibrium of a fictitious play is considered to analyze the impacts of various levels of information available to the interconnected system operators on the outcomes of the decision making process under attack. A 34-buses test system, with three systems interconnected by tie-lines, is presented to illustrated the model and compare the impacts of different information scenarios