Jaroslaw Guzinski, Haitham Abu-Rub, Patryk Strankowski

Variable Speed AC Drives with Inverter Output Filters (eBook, ePUB)

• Format: ePub

Produktbeschreibung

The advance of variable speed drives systems (VSDs) engineering highlights the need of specific technical guidance provision by electrical machines and drives manufacturers, so that such applications can be properly designed to present advantages in terms of both energy efficiency and expenditure. This book presents problems and solutions related to inverter-fed electrical motors. Practically orientated, the book describes the reasons, theory and analysis of those problems. Various solutions for individual problems are presented together with the complete design process, modelling and simulation examples with MATLAB/Simulink on the companion website. A key focus of Variable Speed AC Drives with Inverter Output Filters is to examine the state variables estimation and motor control structures which have to be modified according to the used solution (filter). In most control systems the structure and parameters are taken into account to make it possible for precise control of the motor. This methodology is able to include modifications and extensions depending on specific control and estimation structures. Highly accessible, this is an invaluable resource for practising R&D engineers in drive companies, power electronics & control engineers and manufacturers of electrical drives. Senior undergraduate and postgraduate students in electronics and control engineering will also find it of value.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 336
• Erscheinungstermin: 8. September 2015
• Englisch
• ISBN-13: 9781118791929
• Artikelnr.: 43831672

Autorenporträt

Dr Jaroslaw Guzinski, Gdansk University of Technology, Poland Dr Guzinski is currently an adjunct with the Faculty of Electrical and Control Engineering at Gdansk University of Technology. Dr Guzinski is the author and co-author of more than 100 papers presented in journals and conferences and the co-author of High Performance Control of AC Drives with Matlab/Simulink Models (John Wiley & Sons, 2012). Professor Haitham Abu-Rub, Texas A&M University at Qatar, Qatar, Doha Professor Abu-Rub has worked in the academic field and has been an active expert in electric drives for almost 20 years. He joined Texas A&M University at Qatar in 2006 and teaches a course on electrical drives to graduate and undergraduate students. He has published around 80 journal and conference papers, has co-authored four lab manuals, and reviewed a significant number of scientific papers and projects. Professor Abu-Rub is also a co-author of High Performance Control of AC Drives with Matlab/Simulink Models (John Wiley & Sons, 2012). Patryk Strankowski, Gdansk University of Technology, Poland Patryk Strankowski is currently working towards his Ph.D. degree in monitoring and diagnosis of electrical drives at the Gdansk University of Technology in Poland.

Inhaltsangabe

Foreword xi Acknowledgments xiii About the Authors xiv Nomenclature xvi 1
Introduction to Electric Drives with LC Filters 1 1.1 Preliminary Remarks 1
1.2 General Overview of AC Drives with Inverter Output Filters 2 1.3 Book
Overview 4 1.4 Remarks on Simulation Examples 5 References 6 2 Problems
with AC Drives and Voltage Source Inverter Supply Effects 9 2.1 Effects
Related to Common Mode Voltage 9 2.1.1 Capacitive Bearing Current 15 2.1.2
Electrical Discharge Machining Current 15 2.1.3 Circulating Bearing Current
15 2.1.4 Rotor Grounding Current 17 2.1.5 Dominant Bearing Current 17 2.2
Determination of the Induction Motor CM Parameters 18 2.3 Prevention of
Common Mode Current: Passive Methods 20 2.3.1 Decreasing the Inverter
Switching Frequency 20 2.3.2 Common Mode Choke 21 2.3.3 Integrated Common
Mode and Differential Mode Choke 23 2.3.4 Common Mode Transformer 25 2.3.5
Machine Construction and Bearing Protection Rings 26 2.4 Active Systems for
Reducing the CM Current 27 2.5 Common Mode Current Reduction by PWM
Algorithm Modifications 28 2.5.1 Three Nonparity Active Vectors 30 2.5.2
Three Active Vector Modulation 32 2.5.3 Active Zero Voltage Control 32
2.5.4 Space Vector Modulation with One Zero Vector 36 2.6 Simulation
Examples 39 2.6.1 Model of Induction Motor Drive with PWM Inverter and CMV
39 2.6.2 PWM Algorithms for Reduction of CMV 44 2.7 Summary 46 References
46 3 Model of AC Induction Machine 49 3.1 Introduction 49 3.1.1 T?]Model of
Induction Machine 50 3.2 Inverse?]Gamma Model of Induction Machine 53 3.3
Per?]Unit System 54 3.4 Machine Parameters 56 3.5 Simulation Examples 59
References 63 4 Inverter Output Filters 65 4.1 Structures and Fundamentals
of Operations 65 4.2 Output Filter Model 71 4.3 Design of Inverter Output
Filters 74 4.3.1 Sinusoidal Filter 74 4.3.2 Common Mode Filter 80 4.4 dV/dt
Filter 83 4.5 Motor Choke 85 4.6 Simulation Examples 86 4.6.1 Inverter with
LC Filter 86 4.6.2 Inverter with Common Mode and Differential Mode Filter
90 4.7 Summary 95 References 96 5 Estimation of the State Variables in the
Drive with LC Filter 97 5.1 Introduction 97 5.2 The State Observer with LC
Filter Simulator 99 5.3 Speed Observer with Simplified Model of
Disturbances 103 5.4 Speed Observer with Extended Model of Disturbances 106
5.5 Speed Observer with Complete Model of Disturbances 107 5.6 Speed
Observer Operating for Rotating Coordinates 109 5.7 Speed Observer Based on
Voltage Model of Induction Motor 114 5.8 Speed Observer with Dual Model of
Stator Circuit 122 5.9 Adaptive Speed Observer 125 5.10 Luenberger Flux
Observer 129 5.11 Simulation Examples 130 5.11.1 Model of the State
Observer with LC Filter Simulator 130 5.11.2 Model of Speed Observer with
Simplified Model of Disturbances 133 5.11.3 Model of Rotor Flux Luenberger
Observer 136 5.12 Summary 138 References 138 6 Control of Induction Motor
Drives with LC Filters 141 6.1 Introduction 141 6.2 A Sinusoidal Filter as
the Control Object 141 6.3 Field Oriented Control 143 6.4 Nonlinear Field
Oriented Control 148 6.5 Multiscalar Control 156 6.5.1 Main Control System
of the Motor State Variables 157 6.5.2 Subordinated Control System of the
Sinusoidal Filter State Variables 160 6.6 Electric Drive with Load?]Angle
Control 166 6.7 Direct Torque Control with Space Vector Pulse Width
Modulation 178 6.8 Simulation Examples 186 6.8.1 Induction Motor
Multiscalar Control with Multiloop Control of LC Filter 186 6.8.2 Inverter
with LC Filter and LR Load with Closed?]Loop Control 194 6.9 Summary 198
References 198 7 Current Control of the Induction Motor 201 7.1
Introduction 201 7.2 Current Controller 203 7.2.1 Predictive Object Model
207 7.2.2 Costs Function 208 7.2.3 Predictive Controller 208 7.3
Investigations 208 7.4 Simulation Examples of Induction Motor with Motor
Choke and Predictive Control 210 7.5 Summary and Conclusions 216 References
217 8 Diagnostics of the Motor and Mechanical Side Faults 218 8.1
Introduction 218 8.2 Drive Diagnosis Using Motor Torque Analysis 218 8.3
Diagnosis of Rotor Faults in Closed?]Loop Control 233 8.4 Simulation
Examples of Induction Motor with Inverter Output Filter and Load Torque
Estimation 235 8.5 Conclusions 239 References 239 9 Multiphase Drive with
Induction Motor and an LC Filter 241 9.1 Introduction 241 9.2 Model of a
Five?]Phase Machine 243 9.3 Model of a Five?]Phase LC Filter 246 9.4
Five?]Phase Voltage Source Inverter 247 9.5 Control of Five?]Phase
Induction Motor with an LC Filter 253 9.6 Speed and Flux Observer 255 9.7
Induction Motor and an LC Filter for Five?]Phase Drive 257 9.8
Investigations of Five?]Phase Sensorless Drive with an LC Filter 257 9.9
FOC Structure in the Case of Combination of Fundamental and Third Harmonic
Currents 262 9.10 Simulation Examples of Five?]Phase Induction Motor with a
PWM Inverter 266 References 269 10 General Summary, Remarks, and Conclusion
271 Appendix A Synchronous Sampling of Inverter Output Current 273
References 276 Appendix B Examples of LC Filter Design 277 B.1 Introduction
277 Appendix C Equations of Transformation 282 References 285 Appendix D
Data of the Motors Used in Simulations and Experiments 286 Appendix E
Adaptive Backstepping Observer 289 Marcin Morawiec E.1 Introduction 289 E.2
LC Filter and Extended Induction Machine Mathematical Models 290 E.3
Backstepping Speed Observer 292 E.4 Stability Analysis of the Backstepping
Speed Observer 298 E.5 Investigations 304 E.6 Conclusions 305 References
307 Appendix F Significant Variables and Functions in Simulation Files 308
Index 311