Design and Applications of Adaptive Impedance Converters

This book provides the potential advantages of adaptive impedance converters in different applications, such as power quality compensations, AC/DC microgrids, co-phase railway traction supply systems, and underwater electroacoustic transduction systems. In these applications, the adaptive impedance converter models, topologies, and control methods are introduced in this book.

Adaptive impedance converters are designed to transform the impedance of an electronic system to optimize its performance. The adaptive impedance converter is typically implemented using passive and active electronic components to achieve impedance transformation. The main advantage of adaptive impedance converters is their ability to dynamically adjust the impedance to optimize system performance, which can help improve signal quality, reduce interference, and minimize power losses. Whether it is passive based adaptive impedance converters and active adaptive impedance, they both can applied into different applications including distribution system, renewable energy integration, AC/DC microgrids, traction supply system, and power amplifiers to achieve good performances and ensure efficient power transfer. The passive-based adaptive impedance converters can effectively reduce the converter rating and power loss, maintaining a large operational range. The active adaptive impedance can change its impedance varying with frequency, load conditions, or other factors to match the impedance of the source or load, providing efficient power transfer and minimizing signal reflections.

The target audience of this book is the research scholars (including master’s and Ph.D. students) in power electronics and electrical engineer.

Lei Wang received the B.Sc. degree in Electrical and Electronics Engineering from University of Macau (UM), Macao SAR, P. R. China, in 2011, M.Sc. degree in Electronics Engineering from Hong Kong University of Science and Technology (HKUST), Hong Kong SAR, P. R. China, in 2012. and Ph.D. degree in Electrical and Computer Engineering from University of Macau (UM), Macao SAR, P. R. China, in 2017. In 2019, he joined the College of Electrical and Information Engineering, Hunan University, Changsha, China, where he is currently a Full Professor. He has authored 1 Springer book, 1 Elsevier book chapter, 20 patents (U.S.A and China) and about100 journal and conference papers (including 70 Top journals).

Man Chung WONG (senior member of IEEE since 2006 and IET Fellow since 2023) He received his bachelor's and master's degrees from the Department of Electrical and Electronic Engineering, Faculty of Science and Technology, University of Macau respectively, and his doctorate from the Department of Electrical Engineering, Tsinghua University, Beijing, China. He is currently a professor in the Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau. His research interests include integrated power electronics controllers, power electronic converters, power quality compensators, renewable energy, wireless power transfer, smart grid, and smart energy. Dr. Wong has published over 140 papers in international journals and conferences, four books on power quality in the world's largest technology publishing house (Springer), and holds 11 patents in China and the United States.

Ziyi Bai received the B.Sc. degree in electrical engineering from Hainan University, Haikou, China, in 2016, the M.Sc. degree in electrical engineering from Hunan University, Changsha, China, in 2019, and the Ph.D. degree in electrical and computer engineering with the State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau. In 2023, she joined University of Macau, Macau, where she is currently a Postdoctoral Fellow. Her research interests include power filter, smart grid, renewable energy, power converter, and distributed generation.