Security Assessment and Impact Analysis of Cyberattacks in Integrated T&D Power Systems

TL;DR

This paper evaluates the impact of cyberattacks on integrated T&D power systems with DERs, identifying vulnerabilities and potential attack scenarios using a structured risk assessment methodology.

Contribution

It introduces a comprehensive risk analysis framework for cyber threats in integrated power systems, focusing on specific attack strategies and their potential impacts.

Findings

Identified critical assets and threat scenarios in T&D systems.

Analyzed impact of data integrity and control signal attacks.

Provided prioritized risk mitigation strategies.

Abstract

In this paper, we examine the impact of cyberattacks in an integrated transmission and distribution (T&D) power grid model with distributed energy resource (DER) integration. We adopt the OCTAVE Allegro methodology to identify critical system assets, enumerate potential threats, analyze, and prioritize risks for threat scenarios. Based on the analysis, attack strategies and exploitation scenarios are identified which could lead to system compromise. Specifically, we investigate the impact of data integrity attacks in inverted-based solar PV controllers, control signal blocking attacks in protective switches and breakers, and coordinated monitoring and switching time-delay attacks.