Wireless Power Transfer: Principles and Applications

389 Pages·2022·24.263 MB·English

by  Zhen Zhang, Hongliang Pang

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WirelessPowerTransfer
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Wireless Power Transfer: Principles and
Applications
Zhen Zhang and Hongliang Pang
TianjinUniversity,China
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Setin9.5/12.5ptSTIXTwoTextbyStraive,Chennai,India
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Tomybabygirl,OliviaYiqingZhang.
ZhenZhang,Ph.D.
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vii
Contents
AuthorBiographies xv
Preface xvii
Acknowledgments xix
PartI Introduction 1
1 TheEraofWirelessPowerTransfer 3
(cid:2) 1.1 TheFatherofWirelessPowerTransfer–NikolaTesla 3 (cid:2)
1.2 WirelessPowerTransfer 5
1.2.1 Acoustic 6
1.2.2 Optical 6
1.2.3 Microwave 8
1.2.4 Capacitive 9
1.2.5 Inductive 10
1.3 AboutThisBook 13
References 15
2 InductivePowerTransfer 19
2.1 InductivePowerTransfer 19
2.1.1 Principle 19
2.1.2 1-to-1Transmission 21
2.1.2.1 PrimaryPowerSource 22
2.1.2.2 Primary/SecondaryCompensationNetwork 22
2.1.2.3 MagneticCoupling 23
2.1.2.4 PickupUnit 24
2.1.3 1-to-NTransmission 24
2.1.3.1 Single-FrequencyExcitation 25
2.1.3.2 MultifrequencyExcitation 26
2.2 1-to-1Transmission 28
2.2.1 CoupledModeling 28
2.2.1.1 LooselyCoupledTransformerModel 28
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viii Contents
2.2.1.2 T-model 30
2.2.1.3 M-model 31
2.2.1.4 Discussion 31
2.2.2 Compensation 31
2.2.2.1 SeriesType 32
2.2.2.2 ParallelType 33
2.2.3 PowerTransmission 34
2.2.3.1 LoadPower 34
2.2.3.2 Efficiency 36
2.2.3.3 RelationshipBetweenPowerandEfficiency 36
2.2.3.4 Considerations 36
2.3 1-to-nTransmission 37
2.3.1 GeneralConfiguration 37
2.3.2 TwoPickupsSystemAnalysis 38
2.3.2.1 Modeling 38
2.3.2.2 LoadPower 40
2.3.2.3 Efficiency 41
2.3.3 MultiplePickupsSystemAnalysis 42
2.3.3.1 Modeling 42
2.3.3.2 LoadPower 44
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2.3.3.3 Efficiency 44
2.3.3.4 Discussion 45
2.3.4 Cross-Coupling 45
2.3.4.1 Cross-CouplingEffect 45
2.3.4.2 FrequencyShifting 48
2.3.4.3 CompensationofCross-Coupling 49
2.4 WhatAretheDifferencesBetween1-to-1and1-to-nTransmission 50
2.4.1 PowerDistribution 50
2.4.2 TransmissionControl 51
2.4.3 Cross-CouplingEffects 51
2.4.4 EnergySecurity 52
2.A Appendix 52
References 53
PartII Design 55
3 DesignandOptimizationforCoupledCoils 57
3.1 Introduction 57
3.2 DesignConsiderations 58
3.2.1 AnalysisofPowerTransmission 58
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