Webinar: EMT Modeling and Simulation – Who Needs an EMT Model for Doing Stability Studies?

Featured Speaker: Babak Badrzadeh, Technical Director, Power Systems, Aurecon About the Webinar: Power systems around the world are transitioning to significantly higher shares of inverter-based resources (IBR) with few synchronous generators remaining online. IBR and synchronous generators have fundamentally different dynamic performance characteristics. System dynamics and technical needs are therefore vastly different between synchronous and IBR dominated power systems, and these differences will become greater as IBR uptake increases in the power system. Several practical experiences exist where conventional power system stability analysis tools, referred to as phasor-domain transients, have been unable to predict these phenomena due to the simplifications inherent to these tools. More detailed whole-system modelling based on electromagnetic transient (EMT) models has been increasingly used in recent times in particular in countries/regions with higher IBR penetration to address the problems discussed above. This will facilitate accurate long-term power system planning allowing the resolution of new and emerging phenomena before they manifest in real power system operation. It will also permit a more accurate albeit more involved assessment of the impact of connecting new IBRs such as battery energy storage systems, hydrogen electrolyser, solar and wind generation on power system planning and operation. This detailed modelling will also facilitate better understanding of the performance of emerging technologies such as grid-forming inverters and how best they can be designed to meet emerging power system needs and technical requirements in power systems with significantly higher IBR penetration. This webinar focuses on why, when, where and who questions as far as wide-area EMT modelling is concerned. A brief discussion on the how question will also be presented.