Journal
SUSTAINABLE ENERGY GRIDS & NETWORKS
Volume 28, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.segan.2021.100541
Keywords
Cyber physical power system (CPPS); False data injection attack (FDIA); Phasor measurement unit (PMU); Zero-sum game; Multi-stage game
Funding
- National Natural Science Foundation Project of China [51774088]
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This paper proposes a multi-stage game model for FDIA in power system, with PMU as the attack defense target, emphasizing data tampering, strategic adjustments, and multi-path attacks from the attacker's perspective. The optimal attack-defense strategy is obtained through a two-player zero-sum game theory, considering overall revenue and multi-path attacks. Experiment results show that the proposed multi-stage game strategy has better effect and applicability for attackers.
With the rapid development and widespread application of information and communication technology, power system has gradually become a cyber physical power system (CPPS) in which the cyber space and physical space are deeply coupled. The continuous interaction between information flow and power flow renders power grid confronted with potential cyber attack risks. As a typical attack approach, false data injection attack (FDIA) interferes with control decisions making by weakening information integrity. In this paper, regarding the phasor measurement unit (PMU) as the attack defense target in power system, a multi-stage game model for FDIA is proposed based on attacker's perspective, putting particular emphasis on data tampering, strategic adjustments, and multi-path attacks in a multi-stage game. Firstly, from the perspective of the attacker, the false data is constructed based on the PMU configuration, the attack range is optimized, and the attack consequences are quantified. Secondly, based on two-player zero-sum game theory, take the overall revenue and multi path attacks in multi-stage game into consideration, the optimal attack-defense strategy is obtained by solving the Nash equilibrium point. Finally, experiment results of multi-stage game and one-stage game are discussed. The simulation results demonstrate that the proposed multi-stage game strategy owns better effect and applicability for attackers. (C) 2021 Elsevier Ltd. All rights reserved.
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