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Impedance Source Power Electronic Converters brings together state of the art knowledge and cutting edge techniques in various stages of research related to the ever more popular impedance source converters/inverters.Significant research efforts are underway to develop commercially viable and technically feasible, efficient and reliable power converters for renewable energy, electric transportation and for various industrial applications. This book provides a detailed understanding of the concepts, designs, controls, and application demonstrations of the impedance source converters/inverters.Key features:* Comprehensive analysis of the impedance source converter/inverter topologies, including typical topologies and derived topologies.* Fully explains the design and control techniques of impedance source converters/inverters, including hardware design and control parameter design for corresponding control methods.* Presents the latest power conversion solutions that aim to advance the role of power electronics into industries and sustainable energy conversion systems.* Compares impedance source converter/inverter applications in renewable energy power generation and electric vehicles as well as different industrial applications.* Provides an overview of existing challenges, solutions and future trends.* Supported by calculation examples, simulation models and results.Highly accessible, this is an invaluable resource for researchers, postgraduate/graduate students studying power electronics and its application in industry and renewable energy conversion as well as practising R&D engineers. Readers will be able to apply the presented material for the future design of the next generation of efficient power electronic converters/inverters.

Impedance Source Power Electronic Converters

Preface xiiAcknowledgment xivBios xv1 Background and Current Status 11.1 General Introduction to Electrical Power Generation 11.1.1 Energy Systems 11.1.2 Existing Power Converter Topologies 51.2 Z-Source Converter as Single-Stage Power Conversion System 101.3 Background and Advantages Compared to Existing Technology 111.4 Classification and Current Status 131.5 Future Trends 151.6 Contents Overview 15Acknowledgment 16References 162 Voltage-Fed Z-Source/Quasi-Z-Source Inverters 202.1 Topologies of Voltage-Fed Z-Source/Quasi-Z-Source Inverters 202.2 Modeling of Voltage-Fed qZSI 232.2.1 Steady-State Model 232.2.2 Dynamic Model 252.3 Simulation Results 302.3.1 Simulation of qZSI Modeling 302.3.2 Circuit Simulation Results of Control System 312.4 Conclusion 33References 333 Current-Fed Z-Source Inverter 353.1 Introduction 353.2 Topology Modification 373.3 Operational Principles 393.3.1 Current-Fed Z-Source Inverter 393.3.2 Current-Fed Quasi-Z-Source Inverter 413.4 Modulation 443.5 Modeling and Control 463.6 Passive Components Design Guidelines 473.7 Discontinuous Operation Modes 483.8 Current-Fed Z-Source Inverter/Current-Fed Quasi-Z-SourceInverter Applications 513.9 Summary 52References 524 Modulation Methods and Comparison 544.1 Sinewave Pulse-Width Modulations 544.1.1 Simple Boost Control 554.1.2 Maximum Boost Control 554.1.3 Maximum Constant Boost Control 564.2 Space Vector Modulations 574.2.1 Traditional SVM 574.2.2 SVMs for ZSI/qZSI 574.3 Pulse-Width Amplitude Modulation 634.4 Comparison of All Modulation Methods 634.4.1 Performance Analysis 644.4.2 Simulation and Experimental Results 644.5 Conclusion 72References 725 Control of Shoot-Through Duty Cycle: An Overview 745.1 Summary of Closed-Loop Control Methods 745.2 Single-Loop Methods 755.3 Double-Loop Methods 765.4 Conventional Regulators and Advanced Control Methods 76References 776 Z-Source Inverter: Topology Improvements Review 786.1 Introduction 786.2 Basic Topology Improvements 796.2.1 Bidirectional Power Flow 796.2.2 High-Performance Operation 806.2.3 Low Inrush Current 806.2.4 Soft-Switching 806.2.5 Neutral Point 826.2.6 Reduced Leakage Current 826.2.7 Joint Earthing 826.2.8 Continuous Input Current 826.2.9 Distributed Z-Network 856.2.10 Embedded Source 856.3 Extended Boost Topologies 876.3.1 Switched Inductor Z-Source Inverter 876.3.2 Tapped-Inductor Z-Source Inverter 936.3.3 Cascaded Quasi-Z-Source Inverter 946.3.4 Transformer-Based Z-Source Inverter 976.3.5 High Frequency Transformer Isolated Z-Source Inverter 1036.4 L-Z-Source Inverter 1036.5 Changing the ZSI Topology Arrangement 1056.6 Conclusion 109References 1097 Typical Transformer-Based Z-Source/Quasi-Z-Source Inverters 1137.1 Fundamentals of Trans-ZSI 1137.1.1 Configuration of Current-Fed and Voltage-Fed Trans-ZSI 1137.1.2 Operating Principle of Voltage-Fed Trans-ZSI 1167.1.3 Steady-State Model 1177.1.4 Dynamic Model 1197.1.5 Simulation Results 1217.2 LCCT-ZSI/qZSI 1227.2.1 Configuration and Operation of LCCT-ZSI 1227.2.2 Configuration and Operation of LCCT-qZSI 1247.2.3 Simulation Results 1267.3 Conclusion 127Acknowledgment 127References 1278 Z-Source/Quasi-Z-Source AC-DC Rectifiers 1288.1 Topologies of Voltage-Fed Z-Source/Quasi-Z-Source Rectifiers 1288.2 Operating Principle 1298.3 Dynamic Modeling 1308.3.1 DC-Side Dynamic Model of qZSR 1308.3.2 AC-Side Dynamic Model of Rectifier Bridge 1328.4 Simulation Results 1348.5 Conclusion 137References 1379 Z-Source DC-DC Converters 1389.1 Topologies 1389.2 Comparison 1409.3 Example Simulation Model and Results 141References 14710 Z-Source Matrix Converter 14810.1 Introduction 14810.2 Z-Source Indirect Matrix Converter (All-Silicon Solution) 15110.2.1 Different Topology Configurations 15110.2.2 Operating Principle and Equivalent Circuits 15310.2.3 Parameter Design of the QZS-Network 15610.2.4 QZSIMC (All-Silicon Solution) Applications 15710.3 Z-Source Indirect Matrix Converter (Not All-Silicon Solution) 15810.3.1 Different Topology Configurations 15810.3.2 Operating Principle and Equivalent Circuits 16010.3.3 Parameter Design of the QZS Network 16410.3.4 ZS/QZSIMC (Not All-Silicon Solution) Applications 16410.4 Z-Source Direct Matrix Converter 16710.4.1 Alternative Topology Configurations 16710.4.2 Operating Principle and Equivalent Circuits 17010.4.3 Shoot-Through Boost Control Method 17110.4.4 Applications of the QZSDMC 17510.5 Summary 177References 17711 Energy Stored Z-Source/Quasi-Z-Source Inverters 17911.1 Energy Stored Z-Source/Quasi-Z Source Inverters 17911.1.1 Modeling of qZSI with Battery 18011.1.2 Controller Design 18211.2 Example Simulations 18811.2.1 Case 1: SOCmin11.2.2 Case 2: Avoidance of Battery Overcharging 19011.3 Conclusion 192References 19312 Z-Source Multilevel Inverters 19412.1 Z-Source NPC Inverter 19412.1.1 Configuration 19412.1.2 Operating Principles 19512.1.3 Modulation Scheme 20012.2 Z-Source/Quasi-Z-Source Cascade Multilevel Inverter 20612.2.1 Configuration 20612.2.2 Operating Principles 20812.2.3 Modulation Scheme 20912.2.4 System-Level Modeling and Control 21312.2.5 Simulation Results 21912.3 Conclusion 224Acknowledgment 224References 22413 Design of Z-Source and Quasi-Z-Source Inverters 22613.1 Z-Source Network Parameters 22613.1.1 Inductance and Capacitance of Three-Phase qZSI 22613.1.2 Inductance and Capacitance of Single-Phase qZSI 22713.2 Loss Calculation Method 23313.2.1 H-bridge Device Power Loss 23313.2.2 qZS Diode Power Loss 23613.2.3 qZS Inductor Power Loss 23613.2.4 qZS Capacitor Power Loss 23713.3 Voltage and Current Stress 23713.4 Coupled Inductor Design 23913.5 Efficiency, Cost, and Volume Comparison with Conventional Inverter 23913.5.1 Efficiency Comparison 23913.5.2 Cost and Volume Comparison 24013.6 Conclusion 242References 24314 Applications in Photovoltaic Power Systems 24414.1 Photovoltaic Power Characteristics 24414.2 Typical Configurations of Single-Phase and Three-Phase Systems 24514.3 Parameter Design Method 24514.4 MPPT Control and System Control Methods 24814.5 Examples Demonstration 24914.5.1 Single-Phase qZS PV System and Simulation Results 24914.5.2 Three-Phase qZS PV Power System and Simulation Results 24914.5.3 1 MW/11 kV qZS CMI Based PV Power System and Simulation Results 25014.6 Conclusion 253References 25515 Applications in Wind Power 25615.1 Wind Power Characteristics 25615.2 Typical Configurations 25715.3 Parameter Design 25715.4 MPPT Control and System Control Methods 25915.5 Simulation Results of a qZS Wind Power System 26115.6 Conclusion 264References 26516 Z-Source Inverter for Motor Drives Application: A Review 26616.1 Introduction 26616.2 Z-Source Inverter Feeding a Permanent Magnet Brushless DC Motor 26916.3 Z-Source Inverter Feeding a Switched Reluctance Motor 27016.4 Z-Source Inverter Feeding a Permanent Magnet Synchronous Motor 27316.5 Z-Source Inverter Feeding an Induction Motor 27616.5.1 Scalar Control (V/F) Technique for ZSI-IM Drive System 27616.5.2 Field Oriented Control Technique for ZSI-IM Drive System 27916.5.3 Direct Torque Control (DTC) Technique for ZSI-IM Drive System 27916.5.4 Predictive Torque Control for ZSI-IM Drive System 28316.6 Multiphase Z-Source Inverter Motor Drive System 28316.7 Two-Phase Motor Drive System with Z-Source Inverter 28616.8 Single-Phase Induction Motor Drive System Using Z-Source Inverter 28616.9 Z-Source Inverter for Vehicular Applications 28616.10 Conclusion 289References 29017 Impedance Source Multi-Leg Inverters 29517.1 Impedance Source Four-Leg Inverter 29517.1.1 Introduction 29517.1.2 Unbalanced Load Analysis Based on Fortescue Components 29617.1.3 Effects of Unbalanced Load Condition 29717.1.4 Inverter Topologies for Unbalanced Loads 30017.1.5 Z-Source Four-Leg Inverter 30217.1.6 Switching Schemes for Three-Phase Four-Leg Inverter 31017.1.7 Buck/Boost Conversion Modes Analysis 31617.2 Impedance Source Five-Leg (Five-Phase) Inverter 31917.2.1 Five-Phase VSI Model 31917.2.2 Space Vector PWM for a Five-Phase Standard VSI 32217.2.3 Space Vector PWM for Five-Phase qZSI 32317.2.4 Discontinuous Space Vector PWM for Five-Phase qZSI 32417.3 Summary 326References 32618 Model Predictive Control of Impedance Source Inverter 32918.1 Introduction 32918.2 Overview of Model Predictive Control 33018.3 Mathematical Model of the Z-Source Inverters 33118.3.1 Overview of Topologies 33118.3.2 Three-Phase Three-Leg Inverter Model 33318.3.3 Three-Phase Four-Leg Inverter Model 33518.3.4 Multiphase Inverter Model 33818.4 Model Predictive Control of the Z-Source Three-Phase Three-Leg Inverter 34218.5 Model Predictive Control of the Z-Source Three-Phase Four-Leg Inverter 34918.5.1 Discrete-Time Model of the Output Current for Four-Leg Inverter 34918.5.2 Control Algorithm 35018.6 Model Predictive Control of the Z-Source Five-Phase Inverter 35018.6.1 Discrete-Time Model of the Five-Phase Load 35218.6.2 Cost Function for the Load Current 35318.6.3 Control Algorithm 35318.7 Performance Investigation 35318.8 Summary 359References 35919 Grid Integration of Quasi-Z Source Based PV Multilevel Inverter 36219.1 Introduction 36219.2 Topology and Modeling 36319.3 Grid Synchronization 36419.4 Power Flow Control 36519.4.1 Proportional Integral Controller 36619.4.2 Model Predictive Control 37219.5 Low Voltage Ride-Through Capability 37919.6 Islanding Protection 38119.6.1 Active Frequency Drift (AFD) 38319.6.2 Sandia Frequency Shift (SFS) 38319.6.3 Slip-Mode Frequency Shift (SMS) 38319.6.4 Simulation Results 38419.7 Conclusion 387References 38720 Future Trends 39020.1 General Expectation 39020.1.1 Volume and Size Reduction by Wide Band-Gap Devices 39020.1.2 Parameters Minimization for Single-Phase qZS Inverter 39120.1.3 Novel Control Methods 39220.1.4 Future Applications 39220.2 Illustration of Using Wide Band Gap Devices 39320.2.1 Impact on Z-Source Network 39420.2.2 Analysis and Evaluation of SiC Device Based qZSI 39520.3 Conclusion 398References 398Index 401