Soft-Switching Technology for Three-phase Power Electronics Converters (IEEE Press Series on Power and Energy Systems)

Cover
Title Page
Copyright Page
Contents
Preface
Part 1 Fundamental of Soft-switching
	Chapter 1 Introduction
		1.1 Requirement of Three-phase Power Conversions
			1.1.1 Three-phase Converters
			1.1.2 Switching Frequency vs. Conversion Efficiency and Power Density
			1.1.3 Switching Frequency and Impact of Soft-switching Technology
		1.2 Concept of Soft-switching Technique
			1.2.1 Soft-switching Types
			1.2.2 Soft-switching Technique for Three-phase Converters
		1.3 Applications of Soft-switching to Three-phase Converters
			1.3.1 Renewable Energy and Power Generation
			1.3.2 Energy Storage Systems
			1.3.3 Distributed FACTS Devices
			1.3.4 Uninterruptible Power Supply
			1.3.5 Motor Drives
			1.3.6 Fast EV Chargers
			1.3.7 Power Supply
		1.4 The Topics of This Book
		References
	Chapter 2 Basics of Soft-switching Three-phase Converters
		2.1 Introduction
		2.2 Switching Characteristics of Three-phase Converters
			2.2.1 Control of Three-phase Converters
			2.2.2 Switching Transient Process and Switching Loss
			2.2.3 Diode Turn-off and Reverse Recovery
			2.2.4 Stray Inductance on Switching Process
			2.2.5 Snubber
		2.3 Classification of Soft-switching Three-phase Converters
		2.4 DC-side Resonance Converters
			2.4.1 Resonant DC-link Converters
			2.4.2 Active-clamped Resonant DC-link (ACRDCL) Converter
			2.4.3 ZVS-SVM Active-clamping Three-phase Converter
				2.4.3.1 Active-clamping DC–DC Converter
				2.4.3.2 Active-clamping Three-phase Converter
		2.5 AC-side Resonance Converters
			2.5.1 Auxiliary Resonant Commutated Pole Converter
			2.5.2 Coupled-inductor Zero Voltage-transition (ZVT) Inverter
			2.5.3 Zero-current Transition (ZCT) Inverter
		2.6 Soft-switching Inverter with TCM Control
		2.7 Summary
		References
	Chapter 3 Soft-switching PWM Control for Active Clamped Three-phase Converters
		3.1 Introduction
		3.2 PWM of Three-phase Converters
		3.3 Edge-aligned PWM
		3.4 ZVS Active-clamping Converter with Edge-aligned PWM
			3.4.1 Stage Analysis
			3.4.2 ZVS Conditions
				3.4.2.1 The First Resonant Stage
				3.4.2.2 The Second Resonant Stage
				3.4.2.3 Steady Conditions
			3.4.3 Impact of PWM Scheme and Load on ZVS Condition
		3.5 Control Diagram of the Converter with EA-PWM
		3.6 ZVS-SVM
			3.6.1 Vector Sequence
			3.6.2 ZVS-SVM Scheme
			3.6.3 Characteristics of the Converter with ZVS-SVM
		3.7 Summary
		References
Part 2 ZVS-SVM Applied to Three-phase Rectifiers
	Chapter 4 Three-phase Rectifier with Compound Active-clamping Circuit
		4.1 Introduction
		4.2 Operation Principle of CAC Rectifier
			4.2.1 Space Vector of Three-phase Grid Voltage
			4.2.2 Space Vector Modulation of Three-phase Converter
			4.2.3 Switching Scheme of CAC Rectifier
		4.3 Circuit Analysis
			4.3.1 Operation Stage Analysis
			4.3.2 Resonant Stages Analysis
			4.3.3 Steady State Analysis
			4.3.4 Soft-switching Condition
			4.3.5 Control Technique of Compound Active-clamping Three-phase Rectifier
		4.4 Prototype Design
			4.4.1 Specifications of a 40kW Rectifier
			4.4.2 Parameter Design
			4.4.3 Experiment Platform and Testing Results
		4.5 Summary
		References
	Chapter 5 Three-phase Rectifier with Minimum Voltage Active-clamping Circuit
		5.1 Introduction
		5.2 Operation Principle of MVAC Rectifier
			5.2.1 Space Vector Modulation of Three-phase Converter
			5.2.2 Switching Scheme of MVAC Rectifier
		5.3 Circuit Analysis of MVAC Rectifier
			5.3.1 Operation Stage Analysis
			5.3.2 Resonant Stages Analysis
			5.3.3 Steady State Analysis
			5.3.4 Soft-switching Condition
			5.3.5 Control Technique of Minimum Voltage Active-clamping Three-phase Rectifier
		5.4 Prototype Design
			5.4.1 Specifications of a 30kW Rectifier
			5.4.2 Parameter Design
			5.4.3 Experiment Platform and Testing Results
		5.5 Summary
		References
Part 3 ZVS-SVM Applied to Three-phase Grid Inverters
	Chapter 6 Three-phase Grid Inverter with Minimum Voltage Active-clamping Circuit
		6.1 Introduction
		6.2 Operation Principle of MVAC Inverter
			6.2.1 Space Vector of Three-phase Grid Voltage
			6.2.2 Space Vector Modulation of Three-phase Inverter
			6.2.3 Switching Scheme of MVAC Inverter Under Unit Power Factor
			6.2.4 Generalized Space Vector Modulation Method of MVAC Inverter with Arbitrary Output
		6.3 Circuit Analysis
			6.3.1 Operation Stage Analysis
			6.3.2 Resonant Stages Analysis
			6.3.3 Steady-state Analysis
			6.3.4 Soft-switching Condition
			6.3.5 Control Technique of MVAC Inverter
		6.4 Design Prototype
			6.4.1 Specifications of a 30-kW Inverter
			6.4.2 Parameter Design
			6.4.3 Experiment Results
		6.5 Summary
		References
	Chapter 7 Three-phase Inverter with Compound Active-clamping Circuit
		7.1 Introduction
		7.2 Scheme of ZVS-SVM
			7.2.1 Switch Commutations in Main Bridges of Three-phase Inverter
			7.2.2 Derivation of ZVS-SVM
		7.3 Circuit Analysis
			7.3.1 Operation Stage Analysis
			7.3.2 Resonant Stages Analysis
			7.3.3 Steady-state Analysis
			7.3.4 Soft-switching Condition
			7.3.5 Resonant Time Comparison
		7.4 Implementation of ZVS-SVM
			7.4.1 Regulation of Short Circuit Stage
			7.4.2 Implementation in Digital Controller
			7.4.3 Control Block Diagram with ZVS-SVM
		7.5 Prototype Design
			7.5.1 Specifications of a 30-kW Inverter
			7.5.2 Parameter Design
				7.5.2.1 Requirement of Diode Reverse Recovery Suppression
				7.5.2.2 Requirement of Voltage Stress
				7.5.2.2 Requirement of reducing turn-off loss in auxiliary switch
				7.5.2.2 Requirement of Minimum Resonant Capacitance
				7.5.2.2 Requirement of Resonant Time
			7.5.3 Experiment Platform and Testing Results
		7.6 Summary
		References
	Chapter 8 Loss Analysis and Optimization of a Zero-voltage-switching Inverter
		8.1 Introduction
		8.2 Basic Operation Principle of the CAC ZVS Inverter
			8.2.1 Operation Stage Analysis
			8.2.2 ZVS Condition Derivation
		8.3 Loss and Dimension Models
			8.3.1 Loss Model of IGBT Devices
				8.3.1.1 Conduction Loss of IGBT Devices
				8.3.1.2 Switching Loss of the IGBT Devices
			8.3.2 Loss and Dimension Models of Resonant Inductor
			8.3.3 Loss and Dimension Models of the Filter Inductor
			8.3.4 Dimension Model of Other Components
				8.3.4.1 Clamping Capacitor
				8.3.4.2 Heat Sink
		8.4 Parameters Optimization and Design Methodology
			8.4.1 Objective Function
			8.4.2 Constrained Conditions
			8.4.3 Optimization Design
		8.5 Prototype and Experimental Results
		8.6 Summary
		References
	Chapter 9 Design of the Resonant Inductor
		9.1 Introduction
		9.2 Fundamental of Inductor
		9.3 Design Methodology
			9.3.1 Cross-section Area of the Core Ac
			9.3.2 Window Area Ae
			9.3.3 Area-product Ap
			9.3.4 Turns of Winding N
			9.3.5 Length of the Air Gap lg
			9.3.6 Winding Loss Pdc
			9.3.7 Core Loss Pcore
			9.3.8 Design Procedure
		9.4 Design Example
			9.4.1 Barrel Winding Discussion
				9.4.1.1 Winding Position Discussion
				9.4.1.2 Winding Thickness Discussion
			9.4.2 Flat Winding Discussion
				9.4.2.1 Different Structures Comparison
				9.4.2.2 Winding Position Discussion
		9.5 Design Verification
			9.5.1 Simulation Verification
			9.5.2 Experimental Verification
		9.6 Summary
		References
Part 4 Impact of SiC Device on Soft-switching Grid Inverter
	Chapter 10 Soft-switching SiC Three-phase Grid Inverter
		10.1 Introduction
		10.2 Soft-switching Three-phase Inverter
			10.2.1 SVM Scheme in Hard-switching Inverter
			10.2.2 ZVS-SVM Scheme in Soft-switching Inverter
			10.2.3 Operation Stages and ZVS Condition of Soft-switching Inverter
				10.2.3.1 Operation Stages Analysis
				10.2.3.2 ZVS Condition Derivation
					10.2.3.2.1 Resonant Stages Analysis
					10.2.3.2.2 Steady State Analysis
					10.2.3.2.3 Soft-Switching Condition
		10.3 Efficiency Comparison of Hard-switching SiC Inverter and Soft-switching SiC Inverter
			10.3.1 Parameters Design of Soft-switching SiC Inverter
				10.3.1.1 AC Filter Inductor
				10.3.1.2 Resonant Parameters
					10.3.1.2.1 Requirement of Voltage Stress
					10.3.1.2.2 Requirement of the Current Stress in Main Switches and Auxiliary Switch
					10.3.1.2.3 Requirement of Resonant Time
					10.3.1.2.4 Requirement of Minimum Resonant Capacitance
				10.3.1.3 DC Filter Capacitor
				10.3.1.4 Clamping Capacitor
				10.3.1.5 Cores Selection
				10.3.1.6 Switching Loss Measurement
			10.3.2 Comparison of Two SiC Inverters
				10.3.2.1 Loss Distributions
				10.3.2.2 Efficiency Stiffness
				10.3.2.3 Passive Components Volumes
			10.3.3 Experimental Verification
				10.3.3.1 Efficiency Test
				10.3.3.2 Passive Components Volumes Comparison
		10.4 Design of Low Stray Inductance Layout in Soft-switching SiC Inverter
			10.4.1 Oscillation Model
			10.4.2 Design of Low Stray Inductance 7-in-1 SiC Power Module
			10.4.3 7-in-1 SiC Power Module Prototype and Testing Results
				10.4.3.1 Stray Inductance Measurement
				10.4.3.2 Voltage Stress Comparison
		10.5 Design of Low Loss Resonant Inductor in Soft-switching SiC Inverter
			10.5.1 Impact of Distributed Air Gap
			10.5.2 Optimal Flux Density Investigation
			10.5.3 Optimal Winding Foil Thickness Investigation
			10.5.4 Resonant Inductor Prototypes and Loss Measurement
		10.6 Summary
		References
	Chapter 11 Soft-switching SiC Single-phase Grid Inverter with Active Power Decoupling
		11.1 Introduction
			11.1.1 Modulation Methods for Single-phase Inverter
			11.1.2 APD in Single-phase Grid Inverter
		11.2 Operation Principle
			11.2.1 Topology and Switching Scheme
			11.2.2 Stage Analysis
		11.3 Circuit Analysis
			11.3.1 Resonant Stages Analysis
			11.3.2 Steady-state Analysis
			11.3.3 Soft-switching Condition
			11.3.4 Short Circuit Current
		11.4 Design Prototype
			11.4.1 Rated Parameters of a 1.5-kW Inverter
			11.4.2 Parameter Design
			11.4.3 Experimental Platform and Testing Results
		11.5 Summary
		References
	Chapter 12 Soft-switching SiC Three-phase Four-wire Back-to-back Converter
		12.1 Introduction
		12.2 Operation Principle
			12.2.1 Commutations Analysis
			12.2.2 Operation Scheme
			12.2.3 Stage Analysis
		12.3 Circuit Analysis
			12.3.1 Resonant Stage Analysis
			12.3.2 Steady State Analysis
			12.3.3 ZVS Condition
		12.4 Design Prototype
			12.4.1 Parameters Design
			12.4.2 Loss Analysis
			12.4.3 Experimental Results
		12.5 Summary
		References
Appendix
	A.1 Basic of SVM
	A.2 Switching Patterns of SVM 12
	A.3 Switching Patterns of ZVS-SVM
	A.4 Inverter Loss Models
		A.4.1 Loss Model of Hard-switching Three-phase Grid Inverter
			A.4.1.1 Conducting Loss
			A.4.1.2 Switching Loss
			A.4.1.3 AC Filter Inductor Loss and Volume Estimations
		A.4.2 Loss Model of Soft-switching Three-phase Grid Inverter
			A.4.2.1 Loss in Main Switches
			A.4.2.2 Loss in Auxiliary Switch
			A.4.2.3 Loss and Volume of Filter Inductor and Resonant Inductor
	A.5 AC Filter Inductance Calculation
	A.6 DC Filter Capacitance Calculation
Index