Speaker: Professor Xiongfei Wang, Department of Energy Technology, Aalborg University, Denmark
Title: Grid-Synchronization Stability of Converter-Based Resources
Abstract: Power electronic converters are commonly used with wind and solar photovoltaic power generation, flexible alternating current (AC) and direct current (DC) transmission systems. Keeping the converter-based resources in synchronism is critical for a stable and secure power grid. However, the grid-synchronization mechanism of power converters is highly dependent on their control algorithms, differing from electromechanical dynamics of synchronous machines. Further, the limited overcurrent capability of converters imposes constraints on the synchronization control of converters under grid faults. This talk will begin with basic principles of synchronizing converters with the grid. The dynamic impact of synchronization control for converters in weak grids will then be presented. Lastly, the transient stability of converters under grid faults will be discussed.
Biography: Xiongfei Wang got his PhD degree in energy technology from Aalborg University, Denmark, in 2013. Since 2009 he has been with the Aalborg University, where he became an Assistant Professor in 2014, an Associate Professor in 2016, and a Professor and Research Program Leader for Electronic Power Grid (eGrid) in 2018 at the Department of Energy Technology. His research interests are analytical modeling and control of grid-interactive power converters, stability and power quality of power-electronic-based power systems, harmonic analysis and mitigation, and applications of wide bandgap power semiconductor devices.
He serves as a Member-at Large of the IEEE Power Electronics Society (PELS) AdCom (2020-2022), and an Associate Editor for the IEEE Transactions on Power Electronics, the IEEE Transactions on Industry Applications, and the IEEE Journal of Emerging and Selected Topics in Power Electronics.
In 2016, he was selected into Aalborg University Strategic Talent Management Program, which aims at developing next-generation research leaders for Aalborg University. He has received 6 IEEE Prize Paper Awards, the 2016 Outstanding Reviewer Award for the IEEE Transactions on Power Electronics, the 2018 IEEE PELS Richard M. Bass Outstanding Young Power Electronics Engineer Award, the 2019 IEEE PELS Sustainable Energy Systems Technical Achievement Award, and the 2019 Highly Cited Researchers in the Web of Science.