Source-Load Coordinated Reserve Allocation Strategy Considering Cyber-Attack Risks

Abstract

With the developing cyber physical power systems and emerging threat of cyber-attacks, the traditional power services are faced with higher risks of being compromised, as vulnerabilities in cyber infrastructure can be exploited to cause physical damage. Therefore, adjustments need to be made in current control scheme design methods to mitigate the impact of potential attacks on service quality. In this paper, focusing on the service of coordinated source-load participation in primary frequency regulation, a vulnerability analysis is performed with modelling the attack intrusion process, and the risk assessment of the service is made by further modelling the attack impacts on the service's physical effects. On that basis, the traditional coordinated reserve allocation optimization model is modified and the allocation scheme is corrected according to the cyber-attack impacts. The proposed correction methods are validated through a case study, showing effectiveness in defending against the cyber-attack impacts.

Keywords

• Attack mitigation
• cyber physical system security
• coordinated control
• risk assessment