List of Contributors xv Preface xx 1 Analysis of Dual Two-Level Converters for Multilevel Performance 1Shailesh Kumar Gupta and Omveer Singh 1.1 Introduction 1 1.2 Pros and Cons of Multilevel Converters 3 1.3 Applications of Multilevel Converters 5 1.4 Advantages of Dual Two-Level Converters 6 1.5 Problem Identification 7 1.6 Applications of Dual Two-Level Converters 8 1.7 Multilevel Performance of Dual 2-L 3-Phase Inverter Using ANN-Based PWM 10 1.8 Conclusion 19 2 Multilevel Inverters: Classification, Approaches, and Its Application in Photovoltaic System 27Akhlaque Ahmad Khan, Ahmad Faiz Minai, Qamar Alam and Farhad Ilahi Bakhsh 2.1 Introduction 28 2.2 Multilevel Inverters (MLIs) 30 2.3 Topologies for Multilevel Inverters With Reduced Switches 36 2.4 MATLAB/Simulink MLI Configurations 39 2.5 Applications of MLIs in SPV Systems 41 2.6 Conclusion 45 3 Multilevel Inverter Topologies, Modulation, and Applications in Motor Drives 51Zahoor Ahmad Ganie, Abdul Hamid Bhat and Salman Ahmad 3.1 Introduction 51 3.2 Conventional Multilevel Inverter Topologies 53 3.3 New Advent MLI Topologies 57 3.4 Pulse Width Modulation Techniques 61 3.5 Selective Harmonic Elimination Technique 65 3.6 Results and Discussion 67 3.7 Conclusion 71 4 Multilevel Inverter Operation With Reduced Capacitor Inrush Currents for Solar Photo-Voltaic Applications 75Mohammad Ali, Muhammad Khalid and Mohammad Ali Abido 4.1 Introduction 76 4.2 Operation of 11-Level T-Type MLIs 78 4.3 Voltage Balance Algorithm of the Switched Capacitors 83 4.4 Structural and Cost Comparison 84 4.5 Components Analysis Under Steady State 86 4.6 HIL Results 89 4.7 Experimental Validation 92 4.8 Conclusion 94 5 Single Inverter Switched SVPWM Scheme for Four-Level Open-End Winding Induction Motor Drive 99Suresh Lakhimsetty, Hareesh Myneni and Obbu Chandra Sekhar 5.1 Introduction 100 5.2 Proposed Biasing SVPWM Scheme 105 5.3 Experimental and Simulation Results 109 5.4 Conclusion 114 6 Field-Oriented Control (FOC) of Motor Drives With Multilevel Converter 117Arif Iqbal and S. P. Singh 6.1 Introduction 117 6.2 Mathematical Modeling 119 6.3 Simulation Results 122 6.4 Conclusions 124 7 A Review on Self-Balanced Switched-Capacitor Multilevel Converter 127Dhananjay Kumar, Kasinath Jena, Jitendra Kumar Tandekar, Niraj Kumar Dewangan and Vishal Rathore 7.1 Introduction 128 7.2 Literature Review 130 7.3 Description of Five-Level SCMLI 134 7.4 Results 139 7.5 Conclusion 141 8 13 Level Switched-Capacitor Multilevel Converter with High Gain for Grid Connected Solar Photovoltaic Applications 147Hasan Iqbal, Mohammad Tayyab, Haroon Rehman, Adil Sarwar and Md Reyaz Hussan 8.1 Introduction 148 8.2 Switched-Capacitor Multilevel Inverters 151 8.3 Switched Capacitor MLI Operation 152 8.4 Grid-Connected Operation of SCMLIs 156 8.5 Results and Discussion 157 8.6 Summary 160 9 Multilevel Inverter for Renewable Energy Source-Based Grid Integration 165Akhlaque Ahmad Khan, Ahmad Faiz Minai, Mohammed Aslam Husain and Mohammad Naseem 9.1 Introduction 166 9.2 Multilevel Inverters (MLI) 167 9.3 Solar Photovoltaic Systems (SPVs) 171 9.4 Applications of MLIs in RES 174 9.5 Challenges and Future Work 177 9.6 Conclusion 178 10 Modeling and Analysis of Bidirectional Electric-Drive-Reconstructed On-Board Converter for Plug-In Electric Vehicles 185Faizan Fayaz Bhat, Zahid Ahmad Tantry, Md Ibrahim and Farhad Ilahi Bakhsh 10.1 Introduction 186 10.2 Proposed Electric-Drive-Reconstructed Converter Topology 187 10.3 Operation of a Proposed System in Charging Mode 193 10.4 Operation of a Proposed System in Driving Mode 198 10.5 Conclusions 200 11 Packed U-Cell Multilevel Inverter and Applications in Solar Photovoltaic System 203Salman Ahmad, Tajamal Hayat Parray and Farhad Ilahi Bakhsh 11.1 Introduction 203 11.2 Packed U-Cell Inverter 212 11.3 Comparison of MLI Topologies 214 11.4 Output Equation 219 11.5 Simulation Model 223 11.6 Hardware Development and Results 226 11.7 Conclusion 227 12 Unified Power Quality Conditioner (UPQC) Based on Multilevel Configurations 233Javeed Bashir, Salman Ahmad and Ahmed Sharique Anees 12.1 Introduction 233 12.2 Basic Principle of Operation 235 12.3 Traditional Control Strategies 236 12.4 UPQC’s P and Q Independent Control 243 12.5 Multilevel Converter-Based UPQC 246 12.6 Conclusion 249 13 Efficiency Evaluation and Harmonic Investigation of a High-Efficiency FrSPWM-Controlled Infinite-Level Inverter 253Aishwarya V. 13.1 Introduction 255 13.2 Three-Phase Infinite-Level Inverter (TILI) 258 13.3 Power Loss Evaluation and Efficiency Assessment of TILI 263 13.4 Simulation Results 269 13.5 Hardware Development and Results 271 13.6 Results and Inference 274 13.7 Conclusion 276 14 Modeling and Analysis of Direct Torque Control Space-Vector Modulation of DFIG 281Vishal Rathore and Dhananjay Kumar 14.1 Introduction 281 14.2 Modeling of DFIG 283 14.3 DTC Using SVPWM 289 14.4 Results and Analysis 290 14.5 Conclusion 294 15 Observer-Based Sliding Mode Control of Static Var Compensator: A Voltage Control Application in a Hybrid Power System 297Zahid Afzal Thoker, and Shameem Ahmad Lone 15.1 Introduction 298 15.2 Mathematical Modeling of the System 299 15.3 Sliding Mode Control Strategy for SVC 303 15.4 Simulation Results 308 15.5 Conclusion 312 16 A Review of Modular Multilevel Converters and Its Applications 317Dhananjay Kumar, Kasinath Jena, Jitendra Kumar Tandekar, Niraj Kumar Dewangan and Vishal Rathore 16.1 Introduction 318 16.2 Literature Review 322 16.3 Mathematical Modeling 326 16.4 Simulation Results 327 16.5 Performance Analysis 333 16.6 Conclusion 333 17 Application of CHB-MLI as a Three-Phase Star-Connected Nine-Level Shunt Active Power Filter 339Jitendra Kumar Tandekar, Amit Ojha and Shailendra Jain 17.1 Introduction 340 17.2 Operating Principle of the CHB-MLI-Based SAPF 341 17.3 Modeling of CHB-MLI-Based Shunt Active Power Filter 344 17.4 Nine-Level CHB-MLI-Based Shunt Active Power Filter 350 17.5 Conclusion 358 References 358 Index 361

Discover the deep insights into the operation, modulation, and control strategies of multilevel converters, alongside their recent applications in variable speed drives, renewable energy generation, and power systems. Multilevel converters have gained attention in recent years for medium/high voltage and high power industrial and residential applications. The main advantages of multilevel converters over two level converters include less voltage stress on power semiconductors, low dv/dt, low common voltage, reduced electromagnetic interference, and low total harmonics distortion, among others. Better output power quality is ensured by increasing the number of levels in the synthesized output voltage waveform. Several multilevel topologies have been reported in the literature, such as neutral point clamped (NPC), flying capacitor (FC), cascaded H-bridge (CHB), hybrid cascaded H-bridge, asymmetrical cascaded H-bridge, modular multilevel converters (MMC), active neutral point clamped converters (ANPC), and packed U-cell type converters and various reduced device counts and a reduced number of source-based topologies have been proposed in literature. The multilevel converter, although a proven and enabling technology, still presents numerous challenges in topologies, modulation, and control, as well as in need-based applications. Since multilevel converters offer a wide range of possibilities, research and development in the areas of multilevel converter topologies, modulation, and control in various applications are still growing. To further improve multilevel converter energy efficiency, reliability, power density, and cost, many research groups across the world are working to broaden the application areas of multilevel converters and make them more attractive and competitive compared to classic topologies. Multilevel Converters intends to provide deep insight about multilevel converter operation, modulation, and control strategies and various recent applications of multilevel converters such as in variable speed drives, renewable energy generation, and power systems.