Seminars run by PhD students and postdocs with the Control and Power Group

The Control and Power (CAP) Research Group is excited to be holding a recurring Research Roulette event in the upcoming academic year! We are looking for speakers who would be happy to talk about their research to others.

The event will take place every month in the seminar room of the Electrical and Electronic Engineering Department building. It is intended to be an opportunity for our cohort of MSc students, PhD students, and postdocs in the Control and Power community to share their research, get to know each other, exchange ideas, and learn from each other’s topics. 

The format of the event is a 20-40 minute presentation followed by a discussion. This will be an excellent opportunity for you, as a speaker, to practice presenting your research, prepare for presentations related to ESA/LSR/conferences etc., and potentially receive constructive feedback from colleagues. 

If you would like to speak at this event, please complete this form. Once you have expressed an interest in speaking at the event, we will be in touch with more details. We are confident that you will find participating in this event to be a positive and enriching experience.

Contacts: Hanqing Zhang (Control talks), Yanshu Niu (Power talks)

Most Recent/Upcoming Talk 

Title: Power Flow-based Estimation of Short-Circuit Currents from Inverter-based Resources

Speaker: Ramon Abritta Aguiar Santos

Venue: EENG 503

Date and time: Wednesday, 17/04/2024, 14:00-15:00

Abstract: This presentation addresses power flow formulations to model current sources either at normal operating conditions or during electrical faults. Inverter-based resources (IBRs) fully interfaced by power electronics are electrically decoupled from the grid. In grid-following mode, they behave as voltage-dependent current sources during faults due to the converters' control schemes. This study presents a full current injection-based Newton-Raphson power flow formulation to handle constant and voltage-dependent current sources. The obtained results indicate that the proposed approach can outperform the conventional power-based Newton-Raphson formulation adapted to include constant current sources during normal operating conditions. Comparisons against a field-validated electromagnetic transients (EMT) model reveal median relative errors of around 1% for the proposed approach when estimating during-fault steady-state current contributions from IBRs under grid-following control.

Biography: Ramon received his B.Sc. and M.Sc. degrees in Electrical Engineering from Universidade Federal de Juiz de Fora (UFJF), Brazil. He is a Ph.D. candidate at the Norwegian University of Science and Technology (NTNU), Trondheim, Norway, taking part in the H2020 MSCA project InnoCyPES. His research interests include the integration of renewable energy sources, optimization problems in the domain of electrical engineering, and computational methods for analyzing IBR-penetrated power systems.