Table Of Content

Power Electronic Converters Introduction Power Electronic Converters Interactive Modelling Using Simulink Power Electronic Converters Interactive Modelling Using Simulink By Narayanaswamy P. R. Iyer MATLAB® and Simulink® are trademarks of The MathWorks, Inc. and are used with permission. The MathWorks does not warrant the accuracy of the text or exercises in this book. This book’ s use or discussion of MATLAB® and Simulink® software or related products does not constitute endorsement or sponsorship by The MathWorks of a particular pedagogical approach or particular use of the MATLAB® and Simulink® software. 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Contents Preface ...................................................................................................................xiii 1 Introduction .....................................................................................................1 1.1 Background ............................................................................................1 1.2 Why Use Simulink? ..............................................................................2 1.3 Significance of Modelling ....................................................................2 1.4 Book Novelty .........................................................................................3 1.5 Book Outline ..........................................................................................4 References .........................................................................................................5 2 Fundamentals of Interactive Modelling ....................................................7 2.1 Introduction ...........................................................................................7 2.2 Interactive Modelling Concept ............................................................7 2.3 Interactive Modelling Procedure ........................................................8 2.3.1 Interactive Model Development ............................................9 2.3.2 Three-Phase AC Voltage Source ..........................................12 2.3.3 SCR Three-Phase Half-Wave Converter .............................16 2.3.4 Gate Pulse Generator .............................................................18 2.3.5 RLE Load .................................................................................21 2.3.6 Output Voltage and Current Measurement .......................21 2.3.7 Input Voltage Measurement .................................................24 2.4 Simulation Results ..............................................................................27 2.5 Discussion of Results ..........................................................................28 2.6 Conclusions ..........................................................................................28 References .......................................................................................................29 3 Interactive Models for AC to DC Converters ..........................................31 3.1 Introduction .........................................................................................31 3.2 Single-Phase Full-Wave Diode Bridge Rectifier ..............................31 3.2.1 Interactive Model for Single-Phase FWDBR with Purely Resistive or with RLE Load .....................................32 3.2.2 Simulation Results .................................................................36 3.3 Single-Phase Full-Wave SCR Bridge Rectifier ................................38 3.3.1 Model for Single-Phase FWCBR with Purely Resistive or with RLE Load ..................................................39 3.3.2 Simulation Results .................................................................44 3.4 Three-Phase Full-Wave Diode Bridge Rectifier ..............................46 3.4.1 Model for Three-Phase FWDBR with Purely Resistive Load .........................................................................48 3.4.2 Simulation Results .................................................................54 vii viii Contents 3.5 Conclusions ..........................................................................................56 References .......................................................................................................56 4 Interactive Models for DC to AC Converters ..........................................57 4.1 Introduction .........................................................................................57 4.2 Three-Phase 180° Mode Inverter .......................................................57 4.2.1 Analysis of Line-to-Line Voltage .........................................58 4.2.2 Analysis of Line-to-Neutral Voltage ...................................60 4.2.3 Total Harmonic Distortion ...................................................63 4.2.4 Model for Three-Phase 180° Mode Inverter .......................63 4.2.5 Simulation Results .................................................................67 4.3 Three-Phase 120° Mode Inverter ......................................................68 4.3.1 Analysis of Line-to-Line Voltage .........................................71 4.3.2 Analysis of Line-to-Neutral Voltage ...................................73 4.3.3 Total Harmonic Distortion ...................................................75 4.3.4 Model of Three-Phase 120° Mode Inverter ........................76 4.3.5 Simulation Results .................................................................78 4.4 Three-Phase Sine PWM Technique .................................................80 4.4.1 Model for Three-Phase Sine PWM Inverter .......................84 4.4.2 Simulation Results .................................................................86 4.5 Conclusions ..........................................................................................87 References .......................................................................................................90 5 Interactive Models for DC to DC Converters .........................................91 5.1 Introduction .........................................................................................91 5.2 Buck Converter Analysis in Continuous Conduction Mode ........91 5.3 B uck Converter Analysis in Discontinuous Conduction Mode .....94 5.4 Model of Buck Converter in CCM and DCM ..................................95 5.4.1 Simulation Results .................................................................97 5.5 Boost Converter Analysis in Continuous Conduction Mode .....101 5.6 B oost Converter Analysis in Discontinuous Conduction Mode ....103 5.7 Model of Boost Converter in CCM and DCM ...............................105 5.7.1 Simulation Results ...............................................................106 5.8 B uck–Boost Converter Analysis in Continuous Conduction Mode .....106 5.9 Buck–Boost Converter Analysis in the Discontinuous Conduction Mode..............................................................................112 5.10 Model of Buck–Boost Converter in CCM and DCM ....................114 5.10.1 Simulation Results ...............................................................115 5.11 Conclusions ........................................................................................115 References .....................................................................................................120 6 Interactive Models for AC to AC Converters ........................................121 6.1 Introduction .......................................................................................121 6.2 Analysis of a Fully Controlled Three-Phase Three-Wire AC Voltage Controller with Star-Connected Resistive Load and Isolated Neutral ................................................................................121 Contents ix 6.2.1 Modelling of a Fully Controlled Three-Phase Three- Wire AC Voltage Controller with Star-Connected Resistive Load and Isolated Neutral .....................................124 6.2.2 Simulation Results ..............................................................129 6.3 Analysis of a Fully Controlled Three-Phase AC Voltage Controller in Series with Resistive Load Connected in Delta ...........................................................................133 6.3.1 Modelling of a Fully Controlled Three-Phase AC Voltage Controller in Series with Resistive Load Connected in Delta .............................................................135 6.3.2 Simulation Results ...............................................................140 6.4 Conclusions ........................................................................................144 References .....................................................................................................145 7 Interactive Modelling of a Switched Mode Power Supply Using Buck Converter ............................................................................................147 7.1 Introduction .......................................................................................147 7.2 Principle of Operation of Switched Mode Power Supply ............147 7.3 Modelling of the Switched Mode Power Supply ..........................150 7.3.1 Simulation Results ...............................................................153 7.4 Conclusions ........................................................................................155 References .....................................................................................................163 8 Interactive Models for Fourth-Order DC to DC Converters .................................................................................165 8.1 Introduction .......................................................................................165 8.2 Analysis of SEPIC Converter in CCM ............................................165 8.3 Analysis of SEPIC Converter in DCM ............................................168 8.4 Model of SEPIC Converter in CCM and DCM ..............................171 8.4.1 Simulation Results ...............................................................174 8.5 Analysis of Quadratic Boost Converter in the CCM ....................176 8.6 Analysis of Quadratic Boost Converter in the DCM ...................181 8.7 Model of Quadratic Boost Converter in CCM and DCM ............184 8.7.1 Simulation Results ...............................................................191 8.8 Analysis of Ultra-Lift Luo Converter in the CCM ........................191 8.9 Analysis of Ultra-Lift Luo Converter in DCM ..............................194 8.10 Model of Ultra-Lift Luo Converter in CCM and DCM ................197 8.10.1 Simulation Results ...............................................................200 8.11 Conclusions ........................................................................................202 References .....................................................................................................205 9 Interactive Models for Three-Phase Multilevel Inverters .................207 9.1 Introduction .......................................................................................207 9.2 Three-Phase Diode-Clamped Three-Level Inverter ....................208 9.2.1 Modelling of Three-Phase Diode-Clamped Three-Level Inverter ............................................................209 9.2.2 Simulation Results ...............................................................214