Operational Control and Protection Implications of Fault Current Limitation in Distribution Networks

This paper introduces research to facilitate the penetration of Distributed Generation (DG) within power distribution networks, especially DG using renewable energy sources, by leveraging emerging technology and standards. In particular, this work focuses on fault current level management, and combines network control and protection functions, superconducting fault current limiter (SCFCL) technology, and a software management system. SCFCLs have the potential to significantly reduce some of the costs associated with rising fault current levels (e.g., replacement of switchgear) due to the increasing presence of DG. Marine and aero power systems also present promising opportunities for SCFCLs, as well as control and protection challenges. The consideration of SCFCLs differentiates this project from existing work on active network management; the unique characteristics of SCFCLs and their impact on network control and protection systems are central to the research.