Cyber-attacks against cyber-physical power systems security: State estimation, attacks reconstruction and defense strategy
作者：
Highlights：
• A method of security state estimation and attack reconstruction of attacked CPPS based on robust intermediate observer is proposed.
• An attack defense strategy based on observer data is proposed.
• By adjusting the active power output of the generator, the system achieves attack redistribution while satisfying the economic optimal condition.
• The new attack and defense strategy proposed by us adjusts the power variation of the generator under real operation.
• The change of the output power of the system before and after the attack is shown intuitively in the whole process, which has more practical application value.
摘要
•A method of security state estimation and attack reconstruction of attacked CPPS based on robust intermediate observer is proposed.•An attack defense strategy based on observer data is proposed.•By adjusting the active power output of the generator, the system achieves attack redistribution while satisfying the economic optimal condition.•The new attack and defense strategy proposed by us adjusts the power variation of the generator under real operation.•The change of the output power of the system before and after the attack is shown intuitively in the whole process, which has more practical application value.
论文关键词：Cyber-physical power systems,Cyber-attacks,Intermediate observer,Secure state estimation,Attack reconstruction,Attack defense
论文评审过程：Received 18 August 2020, Revised 23 June 2021, Accepted 25 August 2021, Available online 7 September 2021, Version of Record 7 September 2021.
论文官网地址：https://doi.org/10.1016/j.amc.2021.126639
