Security Attacks on Smart Grid Scheduling and Their Defences: A Game-Theoretic Approach

TL;DR

This paper investigates false data injection attacks on smart grid energy management systems, demonstrating their impact, proposing monitoring defenses, and using game theory to optimize utility company's security strategies.

Contribution

It introduces a novel class of demand data modification attacks and develops a game-theoretic model to determine optimal defense resource allocation.

Findings

Identification of false data injection attack impact

Development of monitoring strategies for attack detection

Derivation of Nash Equilibrium strategies in security games

Abstract

The introduction of advanced communication infrastructure into the power grid raises a plethora of new opportunities to tackle climate change. This paper is concerned with the security of energy management systems which are expected to be implemented in the future smart grid. The existence of a novel class of false data injection attacks that are based on modifying forecasted demand data is demonstrated, and the impact of the attacks on a typical system's parameters is identified, using a simulated scenario. Monitoring strategies that the utility company may employ in order to detect the attacks are proposed and a game--theoretic approach is used to support the utility company's decision--making process for the allocation of their defence resources. Informed by these findings, a generic security game is devised and solved, revealing the existence of several Nash Equilibrium strategies. The practical outcomes of these results for the utility company are discussed in detail and a proposal is made, suggesting how the generic model may be applied to other scenarios.