Challenge and evolution of cyber attacks in Cyber Physical Power System

With the deployment of sensor and communication network, the conventional power system is transformed into a multi-dimensional heterogeneous complex system, which is known as Cyber-Physical Power System (CPPS). On the one hand, CPPS has developed new abilities of real-time sensing, dynamic control and information services; on the other hand, massive information interaction in CPPS has posed more potential threats of cyber-attacks. Recently, the severe blackouts caused by cyber-attacks have set the alarm for cyber security in power system worldwide. However, research on CPPS attacks is deficient nationwide, and there is a lack of comprehensive understanding in concepts, manners and scenarios of CPPS attacks. The purpose of the paper is to give an overall view of cyber-attacks in CPPS from the perspectives of definition, classifications, typical scenarios, and prospects, and provides some new thoughts for researchers in related fields.