Introduction

This thesis focuses on the key technologies involved in magnetically coupled Wireless Power Transfer (WPT). Starting from the basic structures and theories of WPT, it addresses four fundamental aspects of these systems.

Factors Affecting Transfer Efficiency

Firstly, it analyzes the factors affecting transfer efficiency and compares various methods for reducing the working frequency.

Frequency Splitting

Secondly, it discusses frequency splitting and offers a physical explanation.

Multiple-Load Transfer Structures

Thirdly, it proposes and assesses three multiple-load transfer structures.

WPT Systems with Active Loads

Lastly, it investigates WPT systems with active voltage-source and current-source load. As such, the thesis offers readers a deeper understanding of WPT technology, while also proposing insightful new advances.