Predictive Control of Three Phase AC/DC Converters

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ii CONTENTS 4.6.1 Predictive Model of the Instantaneous Power Behavior . . . 50 4.6.2 Voltage Vectors Sequence . . . . . . . . . . . . . . . . . . . 52 4.6.3 Voltage Vector Selection . . . . . . . . . . . . . . . . . . . . 53 4.6.4 Voltage Vectors Application Times . . . . . . . . . . . . . . 54 4.6.5 Control Scheme of CSF-P-DPC . . . . . . . . . . . . . . . . 57 4.7 VF Based CSF - Predictive Direct Power Control . . . . . . . . . . 58 4.7.1 VF Based Predictive Model of the Instantaneous Power . . 58 4.7.2 Voltage Vector Selection . . . . . . . . . . . . . . . . . . . . 59 4.7.3 Control Scheme of VF-CSF-P-DPC . . . . . . . . . . . . . . 59 4.8 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 4.8.1 Steady State Operation . . . . . . . . . . . . . . . . . . . . 62 4.8.2 Transient Operation . . . . . . . . . . . . . . . . . . . . . . 67 4.9 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 5 Investigations of Control Methods Performance 77 5.1 Robustness to Parameters Mismatch . . . . . . . . . . . . . . . . . 77 5.1.1 Filter‘s Inductance Variations . . . . . . . . . . . . . . . . . 77 5.1.2 Filter‘s Resistance Variations . . . . . . . . . . . . . . . . . 79 5.2 On-line Choke Inductance Estimator . . . . . . . . . . . . . . . . . 80 5.3 Experimental Verification of On-line Choke Inductance Estimator . 82 5.4 Line Voltage Disturbances . . . . . . . . . . . . . . . . . . . . . . . 83 5.4.1 Influence of Line Voltage Harmonics . . . . . . . . . . . . . 83 5.4.2 Influence of Line Voltage Sags . . . . . . . . . . . . . . . . . 86 6 Experimental Study 89 6.1 Steady State Operation . . . . . . . . . . . . . . . . . . . . . . . . 89 6.2 Transient Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 94 6.3 Operation with Low Switching Frequency . . . . . . . . . . . . . . 101 6.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 7 Summary and Final Conclusions 109 Bibliography 111 A Coordinate transformations 121 A.1 Stationary system . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 A.2 Rotating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 B Predictive Current Control 125 B.1 Predictive Current Control in stationary system . . . . . . . . . . . 125 B.2 Predictive Current Control in rotating system . . . . . . . . . . . . 127 C Predictive Direct Power Control 131
CONTENTS iii List of Symbols and Abbreviations 135 List of Figures 139 List of Tables 142 Index 145
Page 1: WARSAW UNIVERSITY OF TECHNOLOGY Fac
Page 5: Contents Contents i 1 Introduction
Page 11 and 12: Chapter 1 Introduction AC/DC Voltag
Page 13 and 14: Based Trajectory Based Deadbeat Con
Page 15 and 16: 5 which properties are deteriorated
Page 17 and 18: Chapter 2 Voltage Source Converter
Page 19 and 20: (Sa=1, Sc=0) UP2 (Sa=1, UP1 Sb=1, S
Page 21 and 22: IL UL jωLIL UL jωLIL 2.2. MATHEMA
Page 23 and 24: ILα 1 sL+RSα - ULα 32IDC 1 sCUDC
Page 25: 2.3. SUMMARY 15 2.3 Summary In this
Page 28 and 29: Iqref Idref ILq ILd ILq φ uLab UDC
Page 30 and 31: UDC Filter 20 CHAPTER 3. CONTROL ST
Page 32 and 33: Qref dP dQ uLab UDC Sabc 22 CHAPTER
Page 34 and 35: 24 CHAPTER 3. CONTROL STRATEGIES FO
Page 36 and 37: Qref Pref uLab UDC Sabc 26 CHAPTER
Page 38 and 39: UDC Filter 28 CHAPTER 3. CONTROL ST
Page 40 and 41: ILq φ ωL 30 CHAPTER 3. CONTROL ST
Page 42 and 43: Lα 32 CHAPTER 3. CONTROL STRATEGIE
Page 51 and 52: Chapter 4 Predictive Direct Power C
Page 53 and 54: 4.3. VARIABLE SWITCHING FREQUENCY P
Page 55 and 56: UPdqUDC Qref UDCSabc uLab iLab 4.3.
Page 57 and 58:
UPdqUDC UDCSabc uLab iLab 4.4. CURR
Page 59 and 60:
UPdqUDC Qref Pref UDCSabc uLab iLab
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4.6. CONSTANT SWITCHING FREQUENCY P
Page 63 and 64:
PP1 fq1 fq2 PP4 PP5 PP6 PP3 fp3 fp3
Page 65 and 66:
Sb Sc Sa Sb Sa Sc Sb Sa 4.6. CONSTA
Page 67 and 68:
fqi fpi Qref Sabc 4.6. CONSTANT SWI
Page 69 and 70:
4.7. VF BASED CSF - PREDICTIVE DIRE
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Qref fpi Sabc iLab 4.7. VF BASED CS
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4.8. SIMULATION RESULTS 63 200 150
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Page 77 and 78:
4.8. SIMULATION RESULTS 67 Mag (% o
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Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
4.9. SUMMARY 75 Control Method t se
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Chapter 5 Investigations of Control
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5.1. ROBUSTNESS TO PARAMETERS MISMA
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Sabc UDC UPαβ UPαβ Lest Lest UP
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5.4. LINE VOLTAGE DISTURBANCES 83 (
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5.4. LINE VOLTAGE DISTURBANCES 85 (
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5.4. LINE VOLTAGE DISTURBANCES 87 C
Page 99 and 100:
Chapter 6 Experimental Study Experi
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6.1. STEADY STATE OPERATION 91 (a)
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6.1. STEADY STATE OPERATION 93 Cont
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6.2. TRANSIENT OPERATION 95 (a) ST-
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Page 109 and 110:
Page 111 and 112:
6.3. OPERATION WITH LOW SWITCHING F
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Page 115 and 116:
Page 117:
6.4. SUMMARY 107 Control Method t s
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110 CHAPTER 7. SUMMARY AND FINAL CO
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112 BIBLIOGRAPHY [11] K. Hyosung an
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114 BIBLIOGRAPHY [38] A. Nasiri,
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116 BIBLIOGRAPHY [66] F. Morel, J.
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118 BIBLIOGRAPHY 13. A. Lopez de He
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Appendix A Coordinate transformatio
Page 133 and 134:
q β A.2. ROTATING SYSTEM 123 A.2 R
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Appendix B Predictive Current Contr
Page 137 and 138:
∆ILαβP6 ∆ILαβP5 Figure B.2:
Page 139:
Figure B.4: Vector diagram of predi
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132 APPENDIX C. PREDICTIVE DIRECT P
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List of Symbols and Abbreviations S
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137 Symbols Description Definition
Page 149 and 150:
List of Figures 1.1 Conjunction bet
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LIST OF FIGURES 141 5.3 Line curren
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LIST OF TABLES 143 B.2 An example o
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Predictive Control of Three Phase AC/DC Converters

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