Holistic Design of Resonant DC Transformer on Constant Voltage Conversion, Cascaded Stability and High Efficiency

Introduction.- The Proposed Robust Circuit Parameters Design for the CLLC-type DC Transformer in the Hybrid AC/DC Microgrid.- The Proposed Simplified Resonant Parameters Design of the Asymmetrical CLLC-type DC Transformer in the Renewable Energy System via Semi-artificial Intelligent Optimal Scheme.- The Proposed Two-stage Parameter Design Methodology of a Generalized Resonant DC Transformer in Hybrid AC/DC Microgrid with Optimum Active Power Transmission.- Design of Symmetrical CLLC Resonant DC Transformer Considering Voltage Transfer Ratio and Cascaded System Stability.- Parameter Design for Symmetrical CLLC-Type DC Transformer Considering Cascaded System Stability and Power Efficiency.- Design Methodology for Symmetric CLLC Resonant DC Transformer Considering Voltage Conversion Ratio, System Stability and Efficiency.- The Proposed Multi-Time Scale Frequency Regulation of a General Resonant DC Transformer in Hybrid AC/DC Microgrid.

Xin Zhang received the Ph.D. degree in Automatic Control and Systems Engineering from the University of Sheffield, U.K., in 2016, and the Ph.D. degree in Electronic and Electrical Engineering from Nanjing University of Aeronautics & Astronautics, China, in 2014. From February 2014 to December 2016, he was Research Associate with the University of Sheffield. From January 2017 to September 2017, he was Postdoctoral Research Fellow at the City University of Hong Kong. From September 2017 to August 2020, he was Assistant Professor of Power Engineering with the School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore. Currently, he is Full Professor at Zhejiang University. He is generally interested in power electronics, power systems, and advanced control theory, together with their applications in various sectors. He has received the Highly Prestigious Chinese National Award for Outstanding Students Aboard in 2016. He is Associate Editor of eight SCIjournals and transactions, such as IEEE TIE/JESTPE/OJPE Access and IET Power Electronics.

Miss. Fanfan Lin received bachelor's degree in Power Engineering from Harbin Institute of Technology, China in 2018 and currently working toward the Ph.D. degree in Electrical and Electronic Engineering from Nanyang Technological University, Singapore. She is IEEE Student Member since 2018. She is interested in optimization design and artificial intelligent application of power converters.

Prof. Ma, Hao received the B.S., M.S., and Ph.D. degrees from Zhejiang University, Hangzhou, China, in 1991, 1994, and 1997, respectively, all in Electrical Engineering. Since 1997, he worked as Lecturer, Associate Professor, and Professor at Zhejiang University. Currently, he is Professor in the College of Electrical Engineering and served as Vice Dean of ZJU-UIUC Institute, Zhejiang University. His research interests include advanced control in power electronics, wireless power transfer,