:Presenter Andrey Vulfovich :Title Design and Optimization of Practical Inductive Wireless Power Transfer Systems Under Sub-Resonant Frequency Control

Title Design and Optimization of Practical Inductive Wireless Power Transfer Systems Under Sub-Resonant Frequency Control Presenter Andrey Vulfovich Supervisor Prof. Alon Kuperman Summary Wireless power transfer (WPT) is an increasingly important technology for applications such as electric vehicle charging, biomedical implants, and consumer electronics, offering convenience and safety compared to wired solutions. This research develops and optimizes inductive WPT systems with a focus on those employing sub-resonant frequency control (SRFC), which can maintain constant current output while reducing current stress and improving efficiency compared to conventional approaches. To tackle the challenge of operating within regulatory frequency limits and enabling both constant-current and constant-voltage operation, the work analyses series–series compensated systems under constrained conditions and introduces semi-active rectifiers to support full charging cycles. After addressing complete charging cycles, the research also explores the application of SRFC to other topologies, such as secondary-uncompensated systems. Combining theoretical models, simulations, and experiments, the work provides practical design guidelines for efficient, real-world SRFC controlled inductive WPT systems.