Modular Multilevel Converters with Interleaved Half-Bridge Submodules (Springer Theses) 9783031300387, 9783031247125, 3031300386

This book reports on a comprehensive study on a novel high-power converter, i.e. a Modular Multilevel Converter with Int

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Table of contents :
Supervisor’s Foreword
Preface
Acknowledgements
Contents
Abbreviations
Symbols
Variables, Parameters, and Functions
Principle Notation
Superscripts, Subscripts, Circumflexes, and Prefixes
1 Introduction
1.1 Modular Multilevel Converters
1.1.1 Topologies and Applications
1.1.2 Control and Modulation
1.2 Interleaved Converters
1.3 High-Power Applications
1.3.1 Ultra-Fast Charging of Electrical Vehicles
1.3.2 Electric Traction Systems
1.3.3 Hydrogen Electrolyzers
1.3.4 Solid-State Transformers
1.4 Thesis Motivation and Objectives
1.5 Methodology
1.6 Thesis Outline
References
2 Modular Multilevel Converters with Interleaved Half-Bridge Submodules
2.1 Introduction
2.2 Fundamentals
2.3 Operating Principle and Average Model
2.4 Control Methods
2.4.1 Dc Voltage Control
2.4.2 Phase-Locked Loop
2.4.3 Output Current Control
2.4.4 Circulating Current Control
2.4.5 Arm-Energy Control
2.5 Modulation Scheme
2.6 Submodule Energy Balancing
2.7 Numerical Simulations and Comparison
2.8 Efficiency Analysis
2.9 Hardware-in-the-Loop Simulations
2.10 Summary
References
3 Interleaved Currents Balancing Control
3.1 Introduction
3.2 Problem Statement
3.3 Modified Submodule Sorting Algorithm
3.4 Controller Structure
3.5 Numerical Simulations
3.6 Experimental Tests
3.7 Summary
References
4 Sensorless Interleaved Currents Balancing Control
4.1 Introduction
4.2 State Observer Design
4.3 Modified Interleaved Currents Balancing Control
4.4 Numerical Simulations
4.5 Experimental Tests
4.6 Summary
References
5 Conclusions and Future Research
5.1 Summary and Contributions
5.2 Proposal for Future Research
Appendix A Efficiency Calculations
A.1 Inductor losses
A.2 Capacitor losses
A.3 Semiconductor conduction losses
A.4 Semiconductor switching losses
A.5 Driving circuit losses
Appendix B Laboratory Prototype
B.1 Power Part
B.2 Control Part
B.3 Measurements and Signal Acquisition
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Modular Multilevel Converters with Interleaved Half-Bridge Submodules (Springer Theses)
 9783031300387, 9783031247125, 3031300386

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