Impact of FFR in Distribution System Reliability

Abstract

This paper presents an analysis focused on enhancing distribution system reliability in low-inertia power systems, particularly addressing challenges arising from increased penetration of renewable energy sources (RES). Low-inertia systems often have to curtail power generation from RES and activate under-frequency protections, compromising distribution system reliability. By using fast frequency response (FFR) to limit the Nadir during disturbances, distribution system reliability increased. The simulation results from a real Cyprus power system try to present quantitative results to present the magnitude of the problem and the improvement of the utilization of the system through the use of the FFR.