| Invited Talk

Name of the Speaker: Dr Germane Xavier Athanasius
Name of the Organizer: Dr. Bharath Bhikkaji
Venue: ESB-244 (Seminar Hall)
Date/Time: 19th July 2024 (Friday), 2:30 PM
Title: Effects of Extensive Renewable Integration on the Transient Stability of Interconnectors: An Analysis of the Australian Power Grid

Abstract :

The presentation is based on a study that investigated the impact of evolving energy landscapes, particularly the integration of inverter-based resources (IBRs), on the transient stability of AC Interconnectors (ICs). Traditionally dominated by synchronous generators (SGs), power systems are transitioning towards greener energy mixes, necessitating a re-evaluation of conventional transient stability paradigms. With potential consequences like regional blackouts, understanding IC transient stability is crucial.

The shift from SGs to IBRs, embracing technologies like grid-forming and grid- following inverters, introduces challenges in fault conditions and recovery. Synchronous condensers (SCON) and battery energy storage systems (BESS) have emerged as potential mitigation strategies. This study explores the nuanced dynamics of power systems, emphasizing the need for comprehensive examinations, especially across ICs.

Key observations on IC’s stability during transients, reveal that IBRs enhance IC transient stability, showcasing their potential role in bolstering system resilience. However, replacing SG inertia with SCONs negatively impacts IC transient stability, emphasizing the need for careful planning. BESS/Fast Frequency Response (FFR)s, on the other hand, demonstrate a positive influence on IC active power swings, highlighting their potential in stabilizing systems post-disturbance. The implications for power system planning and operation are significant. As renewable resources gain prominence, understanding transient stability nuances becomes paramount. The study advocates for integrating these findings into decision-making processes to enhance the resilience and sustainability of energy grids. In conclusion, the study contributes valuable insights, paving the way for informed strategies in navigating the challenges and benefits of evolving energy technologies.