Impedance Source Power Electronic Converters

Yushan Liu, Texas A&M University at Qatar, QatarDr Yushan Liu received her B.Sc. degree in automation from Beijing Institute of Technology (China) in 2008 and her Ph.D. in electrical engineering from Beijing Jiaotong University (China) in 2014. She is currently Postdoctoral Research Associate in the Department of Electrical and Computer Engineering, Texas A&M University at Qatar. Her research interests include Z-source converters, cascade multilevel converters, photovoltaic power integration, renewable energy systems, and pulsewidth modulation techniques.Haitham Abu-Rub, Texas A&M University at Qatar, QatarDr Abu-Rub holds two PhD degrees, one in electrical engineering from Gdansk University of Technology, Poland, and the second in humanities from Gdansk University. Since 2006, Dr Abu-Rub has been an Associate Professor at Texas A&M University at Qatar. His main research interest is energy conversion systems and he is currently leading potential projects on PV and hybrid renewable power generation systems with different types of converters. He is the first author of three books, co-author of five book chapters, an active IEEE member and an editor of three IEEE Transactions. Baoming Ge, Texas A&M University, Texas, USADr Baoming Ge received his PhD degree in electrical engineering from Zhejiang University, China, in 2000. He is currently working simultaneously at the Electrical and Computer Engineering Department of Texas A&M University, USA, and within the School of Electrical Engineering at Beijing Jiaotong University where his research interests include renewable energy power generation, electrical machines and control, power electronics systems and control theories and applications. Dr Ge has published more than 150 Journal and Conference papers, authored one book and two book chapters, holds seven patents in topics of impedance source converters/inverters and sustainable energy and is an active IEEE member.Frede Blaabjerg, Aalborg University, DenmarkDr Frede Blaabjerg received his PhD degree from Aalborg University in 1988. He became an Assistant Professor in 1992, an Associate Professor in 1996, and a Full Professor of Power Electronics and Drives in 1998. His current research interests include power electronics and its applications such as in wind turbines, PV systems, reliability, harmonics and adjustable speed drives. Dr Blaabjerg has published approximately 300 journal papers in the field of power electronics and its applications, served as Editor-in-Chief of the IEEE Transactions on Power Electronics between 2006 and 2012 and has won numerous prestigious awards for his work in power electronics.Omar Ellabban, Texas A&M University at Qatar, QatarDr Omar Ellabban received his B.Sc. degree in Electrical Machines and Power Engineering from Helwan University (Egypt) and his M.Sc. degree in Electrical Machines and Power Engineering from Cairo University (Egypt)and his Ph.D. in electrical engineering from Vrije Universiteit Brussel (Belgium) in 1998, 2005, and 2011 respectively. In 2012, he joined Texas A&M University at Qatar, Doha, Qatar, as a Post-Doctoral Research Associate and an Assistant Research Scientist in 2013, where he is involved in different renewable energy projects. His current research interests include automatic control, motor drives, power electronics, electric vehicles, switched reluctance motor, renewable energy, and smart grid.

"Power engineers developing Z-source converters, and those who want to learn about this new topology, will find this book to be a very useful resource. It is very well written, clearly explains the technical details of the Z-source convert­er, and incorporates many circuit designs and applications." (IEEE Electrical Insulation magazine 04/05/2017)

• 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: SOCmin < SOC