학술논문
Security Resource Investment Optimization for Critical Infrastructure Systems: A Game-Theoretic Approach
Document Type
Conference
Author
Source
2022 American Control Conference (ACC) Control Conference (ACC), 2022 American. :4642-4647 Jun, 2022
Subject
Language
ISSN
2378-5861
Abstract
Motivated by the problem of optimal security resource deployment in critical infrastructure systems, we study a non-zero-sum security game over the substations of a power system in which the player payoffs depend upon the maturity of the security resources at each substation according to NERCCIP standards. Extending previous work, we give a structural characterization of the possible types of Nash equilibria in our non-zero-sum additive security game model, present feasibility conditions for equilibria of each type, and propose a novel algorithm to compute an equilibrium. Utilizing our characterization of the possible equilibria in additive security games, we propose a method to obtain a suboptimal solution to the problem of maximizing the expected outcome to the system operator by varying the maturity of security resources deployed at each substation and demonstrate the method by simulation.