Dynamic Cascading Simulations of Hybrid AC/DC Power Systems in PSS/E

S. Rezaeian-Marjani, L. Sigrist, A. García-Cerrada

Energies Vol. 19, nº. 7, pp. 1611

Resumen:

Power system blackouts remain a major concern for modern electricity networks, as they often result from cascading failures that lead to substantial load shedding and widespread service disruptions. This paper presents a dynamic resilience assessment of hybrid AC/DC power systems and investigates the effectiveness of voltage-source-converter-based high-voltage direct current (VSC-HVDC) technology in enhancing system resilience under outage contingencies. The study contributes by integrating protection devices and their settings into the analysis and by providing a quantitative evaluation of the system response to N-2 and N-3 contingencies using PSS^®E simulations. The demand not served index is used as a measure of resilience, and its cumulative distribution functions are computed to compare the performance of AC and DC interconnections. The results underscore the importance of VSC-HVDC links in mitigating cascading failures, highlighting their potential as a resilience-enhancing component in modern power grids.

Resumen divulgativo:

Este artículo muestra que los enlaces VSC-HVDC pueden mejorar la resiliencia de los sistemas eléctricos híbridos AC/DC. Ayudan a limitar los fallos en cascada ante múltiples contingencias, reduciendo el riesgo de grandes apagones y de demanda no suministrada.

Palabras Clave: resilience; dynamic simulation; contingency analysis; VSC-HVDC

Índice de impacto JCR-JIF y cuartil WoS: 3,900 - Q3 (2025)

Referencia DOI: https://doi.org/10.3390/en19071611

Publicado en papel: Abril 2026.

Publicado on-line: Marzo 2026.

Cita:
S. Rezaeian-Marjani, L. Sigrist, A. García-Cerrada, "Dynamic Cascading Simulations of Hybrid AC/DC Power Systems in PSS/E", Energies, Vol. 19, nº. 7, pp. 1611, Abril 2026. [Online: Marzo 2026] doi: 10.3390/en19071611