XXIV Power Systems Computation Conference - PSCC 2026, Limassol (Cyprus). 08-12 June 2026
Summary:
Grid-forming voltage source converters (GFMVSCs) play a crucial role in the stability of power systems with large amounts of converter-based generation. Transient stability (angle stability under large disturbances) is a critical limiting factor in stressed power systems. Previous studies have proposed control strategies for GFM-VSCs to improve transient stability.
These approaches typically rely on suitable current-limiting algorithms, voltage/reactive-power and active-power supplementary control strategies. This paper investigates and compares the effectiveness of three active-power control strategies in GFMVSCs to enhance transient stability in power systems with 100 % converter-based generation: (i) a wide-area control strategy (TSPWACS) using the centre of inertia (COI) frequency, (ii) a local transient damping method (TSP-TDM), and (iii) a novel local control strategy (TSP-L) proposed in this work. All strategies were implemented and assessed using short-circuit simulations on Kundur’s two-area test system with 100% GFM-VSC generators, demonstrating critical clearing time (CCT) improvement. The TSP-WACS strategy achieves the best performance but requires a communication infrastructure, while TSP-L strategy offers a simple, robust alternative using only local measurements.
Spanish layman's summary:
Este estudio desarrolla y compara tres estrategias de control de potencia activa para sistemas eléctricos basados en GFM-VSC. El control TSP-L propuesto mejora la estabilidad ante faltas, ofreciendo una alternativa sencilla y robusta sin necesidad de sistemas de comunicaciones.
English layman's summary:
This study develops and compares three active-power control strategies for GFM-VSC-based power systems. The proposed TSP-L controller enhances stability during faults, offering a simple and reliable alternative without need any communication system.
Keywords: Grid-forming power converters, VSC, transient stability, active-power control strategies, WACS, center of inertia (COI), transient damping method (TDM), TSP-L.
DOI: 
https://doi.org/10.1016/j.epsr.2026.113629
Published in: Electric Power Systems Research, vol. 262, ISSN: 0378-7796
Publication date: 01-Jan-2027.
Citation:
R. Ávila-Martínez, L. Rouco, J. Renedo, L. Sigrist, A. García-Cerrada, "Active-power control strategies in grid-forming power converters to improve transient stability in power systems with 100% converter-based generation", presented at XXIV Power Systems Computation Conference - PSCC 2026, Limassol, Cyprus, 08-12 June 2026. In: Electric Power Systems Research, vol. 262, doi: 10.1016/j.epsr.2026.113629
IIT-26-086C
