Mustafa Alrayah Hassan (Member, IEEE) received the B.Sc. degree in electrical engineering from the University of Blue Nile, Ad-Damazin, Sudan, in 2006, the M.Sc. degree in electrical power engineering from the University of Khartoum, Khartoum, Sudan, in 2013, and the Ph.D. degree in electrical engineering from the Hebei University of Technology, Tianjin, China, in 2019., Heworked as a Lecturer with the International University of Africa, Khartoum, in 2014. Since 2019, he has been a Visiting Assistant Professor with the African Center of Excellence in Energy for Sustainable Development, University of Rwanda, Kigali, Rwanda. He is currently a Postdoctoral Researcher with Wuhan University, Wuhan, China. He is also an Assistant Professor with the University of Blue Nileandhe worked as theHead of Electrical Department. He has authored or coauthored many conferences and journal articles. He reviewed many articles with several IEEE journals such as the IEEE Transactions on Industrial Electronics,IEEE Transactions on IndustrialInformatics,IEEE Journal of Emerging and Selected Topics in Power Electronics, IEEE Access, and IET Power Electronics. His current research interests include, power electronic converters, distributed generation systems, smart grid, DC microgrids stability and control, health management of dc-dc power converters in HVDC Grids, nonlinear control, adaptive passivity-based control, and sliding mode control.
My PhD dissertation work focused on the dc microgrid stability and control. We present a robust passivity-based control (PBC) strategy to solve the instability problem of DC-DC power converters with constant power load (CPL) in DC microgrid systems.Based on the PBC, we designed anonlineardisturbance observer (NDO) to improve the control robustnessof the PBC strategy againstsystem disturbances such asload and line variation. Whereas the PBCstrategy is applied toguarantees the system stability due to its property of energy dissipation.We found that, this strategy ensures large signal stability as well as fast recovery performance of the system during disturbance as compared to other nonlinear control strategies.To validate the MATLABsimulation results, we performed the Hardware-in-loop (HIL) experiment on an OPAL-RT real time simulator.Further validations are also presented using a real hardware experimentto emphasize the robustness of the proposed controller.Part of this work is published in “IEEE Journal of Emerging and Selected Topics in Power Electronics” andother conferencepapers arepublished in IEEE Xplore Digital Library.