[TC Webinar] Wideband Resonance Analysis and Design-Oriented Stability Enhancement of Grid-Tied VSCs
Thursday 18 September 2025 at 9:00 PM CST, 3:00 PM CET, 9:00 AM EDT
By Shan He (AAU Energy, Aalborg University, Denmark) and Zhiqing Yang (School of Electrical Engineering and Automation, Hefei University of Technology, China)
Register now using the link below:
https://attendee.gotowebinar.com/register/6361902270499200086
Abstract:
With the rapid integration of renewable energy sources, the modern power grid is undergoing a paradigm shift toward a power-electronic-based infrastructure. As key interfaces between renewables and the grid, grid-tied voltage source converters (VSCs) play a critical role in ensuring stable and reliable power conversion. However, undesired interactions between converters and the grid can lead to wideband resonances. If poorly damped, these resonances may destabilize the system and pose serious risks to grid security. Therefore, accurate resonance analysis and effective stability enhancement strategies for grid-following VSCs are urgently needed.
This webinar begins with an introduction to multi-sampling control, an emerging technique designed to mitigate high-frequency resonance caused by control delay. Next, mid-frequency damping design is explored, focusing on phase angle compensation in resonant controllers. To address stability challenges under weak grid conditions (characterized by low short-circuit ratios), techniques such as virtual admittance and stability margin balancing are presented. Finally, a recently developed wideband damping strategy is introduced to comprehensively improve converter-grid interactive stability across both strong and weak grid scenarios.
Presenters’ bio:
Shan He (Senior Member, IEEE) received the B.S. degree from Northeast Electric Power University, Jilin, China, in 2015, the M.S. degree from Zhejiang University, Hangzhou, China, in 2018, and the Ph.D. from Aalborg University, Aalborg, Denmark, in 2022, all in electrical engineering.
Since 2022, he has been with the Department of Energy Technology, Aalborg University, where he is currently a Post-Doctoral Researcher. In 2021, he was a Visiting Researcher at RWTH Aachen University, Aachen, Germany. In 2023, he was a Research Associate at Kiel University, Kiel, Germany. In 2025, he is a Visiting Researcher at Norwegian University of Science and Technology, Trondheim, Norway. His research interests include renewable energy integration, power to x, and battery management.
Dr. He is the Associate Editor of Protection and Control of Modern Power Systems and the Guest Editor of IEEE Transactions on Power Electronics.
Zhiqing Yang (Member, IEEE) received the B.S. degree from Southwest Jiaotong University, Chengdu, China, in 2013, and the M.S. and Dr.-Ing. degrees from RWTH Aachen University, Aachen, Germany, in 2017 and 2021, respectively, all in electrical engineering.
He was a Research Intern with the Advanced Technology Research and Development Center, Mitsubishi Electric, Amagasaki, Japan, from April 2016 to September 2016, and a Research Associate with the Institute for Power Generation and Storage Systems, RWTH Aachen University, from October 2017 to September 2021. Since 2022, he has been an Associate Professor with the School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, China, and a Researcher in the Institute of Energy, Hefei Comprehensive National Science Center, Hefei. His research interests include power electronics in renewable generations and automobile applications, and power converters with wide bandgap semiconductors.
Dr. Yang serves as a Guest Editor for CPSS Transactions on Power Electronics and Applications.