A Review on Research of Cyber-attacks and Defense in Cyber Physical Power Systems Part Two Detection and Protection

Following the previous paper in the series, this paper provides a review of existing research methods on the sub-topics of attack detection and defense strategy. The purposes and natures of research work of the sub-topics are concluded, and the deficiencies of existing researches are described considering the characteristics of cyber physical power system (CPPS). In terms of attack detection, some methods are proposed based on deviation and feature, which are implemented in cyber and physical sides in CPPS. In terms of protection, existing researches are concluded as the protection methods deployed on cyber side which are mainly reactive protection measures, and the protection methods deployed on physical sides which are mainly based on the ideas of redundant resources and corrective control. On the basis of existing research, the key techniques in CPPS cyber-attack detection and defense are drawn, and future research proposals in these fields are made in accordance with research perspective of modeling, in order to improve the real ability of CPPS to defend itself against cyber-attacks. © 2019 Automation of Electric Power Systems Press.