15th IEEE PowerTech Conference - PowerTech 2023, Belgrado (Serbia). 25-29 junio 2023
Resumen:
Increasing penetration of renewable energy resources (RES) affects stability and, in particular, frequency stability of island power systems like the Canary Islands. System protection involves underfrequency load shedding (UFLS) as a last resort tool. The objective of this paper is to tune the parameters of a UFLS scheme based on the frequency stability margin (FSM) and compare its performance with conventional UFLS schemes. The performance is assessed by simulating the outage of generating units of a real isolated Spanish power system. The results of this study demonstrate that the introduction of the FSM in the UFLS scheme contributes to a significant improvement in its performance. The load shedding is delayed for moderate rate of change of frequency (ROCOF) values, and the amount of disconnected load is reduced.
Resumen divulgativo:
Para proteger los sistemas insulares contra la inestabilidad de frecuencia se utilizan protecciones de frecuencia. En este paper, se ajusta un nuevo tipo de protecciones de frecuencia y se evalúa su funcionamiento.
Palabras clave: Island power systems, frequency stability, underfrequency load shedding.
DOI: 
10.1109/PowerTech55446.2023.10202842
Fecha de publicación: junio 2023.
Cita:
Vadillo, M., Sigrist, L., Rudez, U., Design and comparison of UFLS schemes of isolated power systems based on frequency stability margin, 15th IEEE PowerTech Conference - PowerTech 2023, Belgrado (Serbia). 25-29 junio 2023.
IIT-23-074C
