Wireless power transfer / Johnson I. Agbinya.

Format:

Book

Author/Creator:

Agbinya, Johnson I., author.

Series:

River Publishers series in communications ; Volume 45.

River Publishers Series in Communications ; Volume 45

Language:

English

Subjects (All):

Wireless communication systems--Power supply.

Wireless communication systems.

Physical Description:

1 online resource (767 pages).

Edition:

Second edition.

Place of Publication:

Aalborg, Denmark ; Delft, Netherlands : River Publishers, 2016.

Summary:

Wireless Power Transfer is the second edition of a well received first book, which published in 2012. It represents the state-of-the-art at the time of writing, and addresses a unique subject of great international interest in terms of research.

Contents:

Cover

Half Title

Series Page

Title Page

Copyright Page

Table of Contents

Preface

Acknowledgment

List of Contributors

List of Figures

List of Tables

List of Abbreviations

1: Power Transfer by Magnetic Induction Using Coupled-Mode Theory

1.1 Introduction

1.2 Series-Series Resonators Inductively Coupled

1.2.1 Analysis by the Circuit Theory

1.2.2 Analysis by the Coupled-Mode Theory

1.2.3 Transfer Power Computation

1.2.4 Remark

1.3 Mutual Inductance Computation

1.4 Efficiency of the Active Power Transffer

1.4.1 Scattering Parameters S

1.4.2 Efficiency Computation

1.5 Some Procedures for Optimal Wireless Energy Transfer Systems

1.5.1 Indroduction

1.5.2 Optimal Parameter Computing Performance Optimization of Magnetic Coupled Resonators

1.5.3 Remarks

1.6 Conclusions

1.7 Problems

1.8 Solutions to Problems

References

2: Efficient Wireless Power Transfer Based on Strongly Coupled Magnetic Resonance

2.1 Introduction

2.2 Interaction in Lossless Physical System

2.3 Interaction in Real Two-Resonator Physical System

2.3.1 Fully Resonant Case

2.3.1.1 Strong Coupling k /√ΓSΓD &gt

&gt

1

2.3.1.2 Weak Coupling k /√ΓSΓD ≈ 1 or k /√ΓSΓD &lt

2.3.2 General Non-Resonant Case

2.4 Relay Effect of Wireless Power Transfer

2.4.1 Relay Effect

2.4.2 Time-Domain Comparison Between Relayed and Original Witricity Systems

2.5 Wireless Power Transfer with Multiple Resonators

2.5.1 General Solution for Multiple Relays

2.5.2 Inline Relay(s)

2.5.2.1 One Relay

2.5.2.2 Two Relays

2.5.2.3 Spectral Analysis of Energy Exchanges

2.5.3 Optimization of 2D WPTN Scheme

2.5.3.1 Case 1 with Two Relays

2.5.3.2 Case 2 with Two Relays

2.5.3.3 Spectral Analysis of Energy Exchanges

2.6 Prototype of Wireless Power Transfer.

2.6.1 Cylindrical Resonator Design

2.6.2 Implementation of Cylindrical Resonator

2.6.3 Evaluation of Cylindrical Resonator

2.6.4 Application of Cylindrical Resonator

2.7 Discussion

2.8 Conclusions

3: Low Power Rectenna Systems for Wireless Energy Transfer

3.1 Introduction

3.1.1 History of Wireless Power Transfer

3.1.2 Wireless Power Transfer Techniques

3.1.2.1 DC-RF Conversion

3.1.2.2 Electromagnetic Wave Propagation

3.1.2.3 RF-DC Conversion

3.2 Low Power Rectenna Topologies

3.2.1 Circuit Topologies

3.2.1.1 Series-Mounted Diode

3.2.1.2 Shunt-Mounted Diode

3.2.1.3 Voltage-Doubler Topology

3.2.1.4 Diode Bridge Topology

3.2.1.5 Transistor-Based Rectennas

3.2.2 Rectenna Associations

3.2.3 Modeling a Rectenna

3.2.4 A Designer's Dilemma

3.2.4.1 Output Characteristics

3.2.4.2 Antenna Impedance Influence

3.3 Reconfigurable Electromagnetic Energy Receiver

3.3.1 Typical Application

3.3.2 Rectenna Circuit Configuration

3.3.3 Reconfigurable Architecture

3.3.3.1 Antenna Switch

3.3.3.2 Global Performance

3.3.3.3 Output Load Matching

3.4 Conclusions

4: Wireless Power Transfer: Generation,Transmission, and Distribution Circuit Theory of Wireless Power Transfer

4.1 Introduction

4.2 Criteria for Efficient Resonant Wireless Power Transfer

4.2.1 High Power Factor (Cos θ = 1)

4.2.2 High Coupling Coefficient (k ≈ 1)

4.2.3 High Quality (Q &gt

1) Factors

4.2.4 Matching Circuits

4.2.5 Focusing of Magnetic Field

4.3 Resonant Wireless Power Transfer

4.3.1 Higher-Order WPT Systems

4.4 Loosely Coupled Wireless Power Transfer System

4.4.1 Low Q1 and Q2

4.4.2 High Q1 and Q2

4.5 Efficiency

4.6 Summary

5: Inductive Wireless Power Transfer Using Circuit Theory

5.1 Introduction.

5.2 Advantages of Inductive Coupling for Energy Transfer

5.3 Applications of Inductive Power Transfer

5.4 Fundamentals of Inductive Coupling

5.4.1 Inductive Coupling and Transformer Action

5.4.2 Resonant Circuit Topologies

5.4.3 Power Transfer Across a Poorly Coupled Link

5.4.4 Near-and Far-Field Regions

5.4.5 The Importance of the Loop Antenna

5.4.6 Small Loop of Constant Current

5.4.7 The Loop in Transmitting Mode

5.4.8 The Loop in the Receiving Mode

5.5 Mutual Inductance of Coupled Coils

5.6 The Loosely Coupled Approximation

5.7 Summary

6: Recent Advances on Magnetic Resonant Wireless Power Transfer

6.1 Introduction

6.2 Coupled Inductors

6.2.1 Coupled Inductors

6.2.2 The Series Resonant Circuit

6.2.3 Adding Resonators to the Coupled Inductors

6.2.4 Maximum Efficiency, Maximum Power on the Load,and Conjugate Matching: Two-Port Case

6.2.5 Maximum Efficiency: N-Port Case

6.2.6 Scattering Matrix Representation of a Wireless Power Transfer Network

6.3 Four Coupled Resonators

6.4 Travelling Waves, Power Waves and Conjugate Image Impedances

6.4.1 Travelling Waves and Power Waves

6.4.2 Conjugate Image Impedances

6.5 Measurement of the Resonator Quality Factor

6.6 Examples of Coupled Resonators for WPT

6.7 Design of the Oscillator Powering the Resonant Link

6.8 Conclusions

6.9 Exercises

6.9.1 MATLAB Function for Single-Loop Inductance Computation

6.9.2 MATLAB Function for Two Coaxial Conducting Loops Mutual Inductance Computation

7: Techniques for Optimal Wireless Power Transfer Systems

7.1 Introduction

7.2 Flux Conentrators

7.2.1 Splitting of Coupling Coefficients

7.2.2 Doubling of Coil Radius

7.3 Separators

7.3.1 Simulations

7.3.2 Effect of Concentrator Quality Factor

7.3.3 Effect of Concentrator Radius.

7.4 Approximate Magneto-Inductive Array Coupling Functions

7.4.1 System Specifications

7.4.2 Power Relations in Inductive Systems

7.4.3 Algorithm for Approximate Transfer Function

7.4.4 Interpretation of Algorithm

7.4.5 Correction Terms

7.5 Wireless Feedback Modelling

7.5.1 Wireless Feedback

7.5.2 Q-Based Explanation of Wireless Closed-Loop Transfer Function

7.6 Conclusions

8: Directional Tuning/Detuning Control of Wireless Power Pickups

8.1 Introduction

8.1.1 Shorting Control

8.1.2 Dynamic Tuning/Detuning Control

8.2 Directional Tuning/Detuning Control (DTDC)

8.2.1 Fundamentals of DTDC

8.2.2 Coarse-Tuning Stage

8.2.2.1 Coarse Tuning in Region A

8.2.2.2 Coarse Tuning in Region B

8.2.2.3 Coarse Tuning in Region C

8.2.2.4 Coarse Tuning in Region D

8.2.3 Fine-Tuning Stage

8.2.3.1 Fine-Tuning Between Regions A and B

8.2.3.2 Fine-Tuning Between Regions C and D

8.2.4 Design and Performance Considerations of DTDC

8.2.4.1 Category I

8.2.4.2 Category II

8.2.4.3 Category III

8.2.5 Standard Procedure of DTDC

8.3 DTDC-Controlled Parallel-Tuned LC Power Pickup

8.3.1 Fundamentals of Parallel-Tuned LC Power Pickup

8.3.2 Controllable Power Transfer Capacity of Parallel-Tuned LC Power Pickup

8.3.3 Effects of Parameter Variations on Output Voltage of Parallel-Tuned LC Power Pickup

8.3.4 Operating Frequency Variation

8.3.5 Magnetic Coupling Variation

8.3.6 Load Variation

8.3.7 Operating Range of Variable CS

8.3.7.1 Maximum Required Ratio (radj pv max)

8.3.7.2 Minimum Required Ratio (radj pv min)

8.3.8 Implementation of DTDC Controlled Parallel-Tuned LC Power Pickup

8.3.8.1 Selection of CS1 and CS2

8.3.8.2 Equivalent Capacitance of CS2

8.3.8.3 Integration of Control and ZVS Signals for Q1 and Q2

8.4 Conclusions

8.5 Problems.

References

9: Technology Overview and Concept of Wireless Charging Systems

9.1 Introduction

9.2 System Technology

9.2.1 Power Converter

9.2.2 Compensation Networks

9.2.3 Electromagnetic Structures

9.2.4 Power Conditioner

9.3 Applications

9.4 Development of Wireless Low-Power Transfer System

9.4.1 Methodology

9.4.1.1 Finite Element Formulation

9.4.2 D Planar Wireless Power Transfer System

9.4.2.1 Primary Track Loop

9.4.2.2 Pickup

9.4.3 Wireless Power Transfer System

9.4.3.1 Continuous Mode of Operation

9.4.3.2 Discontinuous Mode of Operation

9.4.3.3 Development

9.5 Conclusions

9.6 Problems

10: Wireless Power Transfer in On-Line Electric Vehicle

10.1 Introduction

10.1.1 Wireless Power Transfer Technology

10.1.2 Wireless Power Transfer System in the Market

10.1.2.1 Application to Automobiles

10.2 Mechanism of Wireless Power Transfer

10.2.1 Electric Field and Magnetic Field

10.2.2 Inductive Coupling and Resonant Magnetic Coupling

10.2.3 Topology Selection and Coil Design

10.3 Design of On-Line Electric Vehicle

10.3.1 Necessity of On-Line Electric Vehicle

10.3.2 Challenges

10.3.3 Topology Analysis

10.3.4 Coil Design for Electric Vehicle

10.3.5 Electromagnetic Field Reduction Technology

10.3.6 Design Procedure and Optimization

10.4 Conclusions

10.5 Problems

11: Wireless Powering and Propagation of Radio Frequencies Through Tissue

11.1 Introduction

11.2 Comparison of Transcutaneous Powering Techniques

11.3 Analysis

11.3.1 Reflections at an Interface

11.3.2 Attenuation Due to Tissue Absorption

11.3.3 Energy Spreading (Free-Space Path Loss)

11.3.4 Expanding to Multiple Layers and Interfaces

11.4 Simulation Modeling

11.5 Empirical Studies

11.6 Antenna Design and Frequency Band Selection.

11.7 Power Conversion Circuitry.

Notes:

Includes bibliographical references at the end of each chapters and index.

Description based on online resource; title from PDF title page (ebrary, viewed August 26, 2016).

ISBN:

1-000-79610-8

1-00-334007-5

1-003-34007-5

1-000-79333-8

87-93237-63-4

9781003340072

OCLC:

957125084