Cyber Security Considerations for Self-healing Smart Grid Networks

Fault Location, Isolation and System Restoration (FLISR) mechanisms allow for rapid restoration of power to customers that are not directly implicated by distribution network failures. However, depending on where the logic for the FLISR system is located, deployment may have security implications for the distribution network. This paper discusses alternative FLISR placements in terms of cyber security considerations, concluding that there is a case for both local and centralized FLISR solutions.