Abstract: Protecting transmission lines which interconnect Inverter-Based Resources (IBRs) has been a great challenge for protection engineers. The atypical short-circuit response of IBRs pose difficulties on conventional protection schemes, boosting developments and applications based on alternative technologies. In this context, traveling wave (TW)-based protections have shown to be promising, since they are not relevantly affected by the characteristics of system sources, and also capable of taking decisions before the reaction of IBR controls to short-circuit conditions. In this lecture, recent results on studies about the use of TW-based protections in IBR-interconnecting lines are discussed, pointing out important aspects related to system modeling for TW protection studies, TW protection performance in systems with different types of IBRs, also addressing perspectives on future applications that may gain popularity in the next coming years.

Short-Bio: Prof. Felipe Lopes received B.Sc, M.Sc and Ph.D degrees in Electrical Engineering from Federal University of Campina Grande (UFCG), Brazil, in 2009, 2011 and 2014, respectively, and post-doctoral degree from UFCG in 2018. He is an IEEE Senior Member, Associate Editor of the IEEE Transactions on Power Delivery and IEEE Power Engineering Letters, and CNPq Productivity Scholar. He is also member of the CIGRE study committee B5 (Protection and Automation), being the coordinator of the Brazilian group GT02 and secretary of the international group B5.55, both focused on traveling wave technologies. He worked as a professor at the University of Brasília (UnB), Brazil, in both undergraduate and graduate levels, from 2014 to 2021 and, in 2021, he took the position of professor at the Electrical Engineering Department at Federal University of Paraíba (UFPB), where he is member of the Smart Grid Group (SG2), the Graduate Programs in Renewable Energies (PPGER) and Electrical Engineering (PPGEE), also being the advisor of the student branch chapter of IEEE-PES in UFPB. He has experience in Electric Power Systems area, working mainly on topics related to: Protection of Electrical Power Systems, Fault Location on Distribution and Transmission Systems and Electromagnetic Transients in Electrical Power Systems..