This book covers wide areas of multiple-objective wireless power transfer (WPT) technologies, such as theoretical analysis, optimal design, intelligent control and emerging applications. Specifically, the book introduces fundamental theory including the multiple-objective transmission analysis configuration, dynamic mutual impact/cross-coupling effects, power distribution and the implementation principles with emphasis on the multiple-objective inductive power transfer. The authors discuss several applications for wireless charging techniques, including high-power and near-field charging, mid-power and mid-range charging, and complex-condition charging. In these presented applications, the WPT shows significant, profound and irreplaceable roles. Thus, this book explores and provides current methodologies, approaches, and foresights of emerging technologies of multiple-objective WPT.

Zhen Zhang, PhD, Associate Professor, School of Electrical and Information Engineering, Tianjin University, China. He is a Senior Member of IEEE, the Editor of IEEE Transactions on Magnetics, and Associate Editor of IEEE Transactions on Industrial Electronics and Industrial Informatics. Professor Zhang is a recipient of Humboldt Research Fellowship and the Carl Friedrich von Siemens Research Fellowship.

Hongliang Pang is a PhD candidate in Electrical and Information Engineering, Tianjin University, China. He is currently working on his thesis Power-electronic-based Impedance Matching for Wireless Power Transfer under the supervision of Professor Zhen Zhang.

Part I: Introduction

Chapter 1: The Era of Wireless Power Transfer

1.1 The father of wireless power transfer - Nikola Tesla

1.2 Wireless power Transfer

1.3 About this book

Chapter 2: Inductive Power Transfer

2.1 Inductive power transfer

2.2 1-to-1 transmission

2.3 1-to-N transmission

2.4 What are differences between 1-to-1 and 1-to-N transmission

Part II: Design

Chapter 3: Design and Optimization for Coupled Coils

3.1 Introduction

3.2 Design considerations

3.3 Optimal design

3.4 Discussion

Chapter 4: Design and Optimization for Power Circuits

4.1 Impedance matching

4.2 DC/AC inverters

Part III: Control

Chapter 5: Control for Single Pickup

5.1 Review of control schemes

5.2 Maximizing efficiency control

Chapter 6: Control for Multiple Pickups

6.1 Introduction

6.2 Transmission strategy for transmitting side

6.3 Impedance matching strategy for multi-frequency transmission

6.4 Others

Chapter 7: Energy Security of Wireless Power Transfer

7.1 Introduction

7.2 Characteristic of frequency

7.3 Energy encryption

7.4 Verifications

7.5 Opportunities

Chapter 8: Omnidirectional Wireless Power Transfer

8.1 Introduction

8.2 Mathematic analysis

8.3 Design of transmitting coils for synthetic magnetic field

8.4 Design and control considerations for pickup coils

8.5 Load detection

8.6 Discussion

Part IV: Application

Chapter 9: WPT for High-Power Application - Electric Vehicles

9.1 Introduction

9.2 EV wireless charging

9.3 Electromagnetic field reduction

9.4 Key technologies

9.5 Summary

Chapter 10: WPT for Low-Power Applications

10.1 Portable consumer electronics

10.2 Implantable medical devices

10.3 Drones

10.4 Underwater wireless charging