Dr.-Ing. Yonggang Zhang

• Since 2021: Research associate at the Department of Energy Management and Operation of Electrical Networks at the University of Kassel.
• 2017 - 2021: PhD at the Chair of Electrical Grids and Renewable Energy at Otto von Guericke University Magdeburg with the dissertation "Analysis and Control of Resonances in HVDC Connected DFIG-based Offshore Wind Farm".
• 2012 - 2017: research associate at China Electric Power Research Institute (CEPRI) in the field of "Automation of Electric Power System".
• 2011 - 2012: development engineers of EMS/SCADA software at NARI Technology Co, Ltd (China).
• 2008 - 2010: Studies of electrical engineering at the University of Duisburg-Essen with Master of Science degree
• 2003 - 2007: Studies of Electrical Engineering at Chang'an University (China) with Bachelor of Engineering degree

• Stability studies in converter-dominated grids
• Design and evaluation of grid-forming converter control systems
• HVDC control systems and stability analysis

2023

• Y. Zhang, N. Wiese, Z. Liu, M. Braun,"On the Control Interaction of Synchronous Machine and Grid-Connected Converter during System-Split Situations," International Journal of Electrical Power & Energy Systems, Elsevier, 2023.

2022

• N. Wiese, Y. Zhang, M. Braun,"New Current Limiting Control for Grid-Forming Converters under Unbalanced Faults," Wind & Solar Integration Workshop 2022, The Hague, Netherlands.
• K. Fischbach, N. Wiese,  Y.Zhang, M. Braun, "Continuous Grid-Forming Control with Transient Current Limitation," NEIS 2022, Hamburg, Germany.
• Y. Zhang, D. Duckwitz, N. Wiese and M. Braun,"Extended Nodal Admittance Matrix Based Stability Analysis of HVDC Connected AC Grids," in IEEE Access, vol. 10, pp. 55200-55212, 2022, doi: 10.1109/ACCESS.2022.3177232.

2021

• N. Wiese, D. Duckwitz, M. Nuschke, Y. Zhang and M. Braun,"Fault operation of grid-forming converters with focus on system stability," Solar Integration Workshop 2021, Berlin, Germany.