Xiaorong Xie (Fellow, IEEE & IET) is a Professor and Director of the Flexible Transmission & Distribution Systems Research Institute at the Department of Electrical Engineering, Tsinghua University, China. He has been engaged in research on power system stability analysis and control, subsynchronous resonance/oscillation, grid integration of renewable energy, and flexible transmission and distribution systems for more than 25 years. His research is supported by China National Science Funds for Distinguished Young Scientists and National Key Research and Development Programs. He has published 4 monographs, and over 300 papers, more than 70 authorized invention patents, and won 1 National Science and Technology Progress Award and over 10 provincial-level/industry association awards. He is currently serving as Editor of several international journals, including the IEEE Transactions on Power Delivery. He is a member of the IEC TC8/SC8A JWG5 (Leader of the Subgroup of “Subsynchronous Control Interaction”), CIGRE WG C4/B4.52 and CIGRE WG C4.49. Jan Shair (Member, IEEE) received his PhD in Electrical Engineering from Tsinghua University, Beijing, China in 2021. Currently, he is working as a Tsinghua-Shuimu Fellow at the Department of Electrical Engineering, Tsinghua University, China. His research interests include modeling, analysis, and control of subsynchronous resonance/oscillation in converter-dominated power systems. He has published his research work in more than 50 journal and conference papers. He is a member of the IEEE Task Force on IBR-SSO and a contributor to several other IEC and CIGRE working groups related to subsynchronous oscillation. Dr. Shair is also serving as Guest Associate Editor of a Special Issue on "Control Interactions in Power Electronic Converter Dominated Power Systems" in the International Journal of Electrical Power and Energy Systems.