| Preface |
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xiii | |
| Acknowledgments |
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xvii | |
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FACTS Concept and General System Considerations |
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1 | (36) |
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Transmission Interconnections |
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1 | (2) |
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Why We Need Transmission Interconnections |
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1 | (1) |
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2 | (1) |
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Flow of Power in an AC System |
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3 | (4) |
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Power Flow in Parallel Paths |
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4 | (1) |
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Power Flow in Meshed System |
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4 | (3) |
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What Limits the Loading Capability? |
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7 | (2) |
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Power Flow and Dynamic Stability Considerations of a Transmission Interconnection |
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9 | (3) |
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Relative Importance of Controllable Parameters |
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12 | (1) |
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Basic Types of FACTS Controllers |
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13 | (3) |
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Relative Importance of Different Types of Controllers |
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14 | (2) |
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Brief Description and Definitions of FACTS Controllers |
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16 | (9) |
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Shunt Connected Controllers |
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18 | (2) |
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Series Connected Controllers |
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20 | (3) |
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Combined Shunt and Series Connected Controllers |
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23 | (1) |
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24 | (1) |
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Checklist of Possible Benefits from FACTS Technology |
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25 | (1) |
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In Perspective: HVDC or FACTS |
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26 | (11) |
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Power Semiconductor Devices |
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37 | (30) |
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Perspective on Power Devices |
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37 | (4) |
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Types of High-Power Devices |
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40 | (1) |
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Principal High-Power Device Characteristics and Requirements |
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41 | (4) |
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Voltage and Current Ratings |
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41 | (1) |
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Losses and Speed of Switching |
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42 | (2) |
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Parameter Trade-Off of Devices |
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44 | (1) |
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45 | (1) |
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46 | (2) |
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48 | (4) |
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51 | (1) |
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Thyristor (without Turn-Off Capability) |
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52 | (2) |
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Gate Turn-Off Thyristor (GTO) |
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54 | (4) |
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Turn-On and Turn-Off Process |
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56 | (2) |
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MOS Turn-Off Thyristor (MTO) |
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58 | (2) |
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Emitter Turn-Off Thyristor |
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60 | (1) |
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Integrated Gate-Commutated Thyristor (GCT and IGCT) |
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61 | (2) |
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Insulated Gate Bipolar Transistor (IGBT) |
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63 | (1) |
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MOS-Controlled Thyristor (MCT) |
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64 | (3) |
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Voltage-Sourced Converters |
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67 | (36) |
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Basic Concept of Voltage-Sourced Converters |
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67 | (2) |
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Single-Phase Full-Wave Bridge Converter Operation |
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69 | (3) |
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Single Phase-Leg Operation |
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72 | (1) |
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Square-Wave Voltage Harmonics for a Single-Phase Bridge |
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73 | (1) |
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Three-Phase Full-Wave Bridge Converter |
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74 | (6) |
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74 | (3) |
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Fundamental and Harmonics for a Three-Phase Bridge Converter |
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77 | (3) |
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Sequence of Valve Conduction Process in Each Phase-Leg |
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80 | (3) |
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Transformer Connections for 12-Pulse Operation |
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83 | (2) |
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24- and 48-Pulse Operation |
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85 | (2) |
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Three-Level Voltage-Sourced Converter |
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87 | (4) |
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Operation of Three-Level Converter |
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87 | (1) |
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Fundamental and Harmonic Voltages for a Three-Level Converter |
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88 | (3) |
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Three-Level Converter with Parallel Legs |
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91 | (1) |
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Pulse-Width Modulation (PWM) Converter |
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91 | (4) |
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Generalized Technique of Harmonic Elimination and Voltage Control |
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95 | (2) |
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Converter Rating---General Comments |
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97 | (6) |
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Self- and Line-Commutated Current-Sourced Converters |
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103 | (32) |
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Basic Concept of Current-Sourced Converters |
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103 | (3) |
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Three-Phase Full-Wave Diode Rectifier |
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106 | (4) |
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Thyristor-Based Converter (With Gate Turn-On but Without Gate Turn-Off) |
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110 | (19) |
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110 | (3) |
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113 | (3) |
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116 | (2) |
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118 | (2) |
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120 | (6) |
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126 | (3) |
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Current-Sourced Converter with Turn-Off Devices (Current Stiff Converter) |
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129 | (3) |
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Current-Sourced Versus Voltage-Sourced Converters |
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132 | (3) |
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Static Shunt Compensators: SVC and STATCOM |
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135 | (74) |
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Objectives of Shunt Compensation |
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135 | (9) |
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Midpoint Voltage Regulation for Line Segmentation |
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135 | (3) |
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End of Line Voltage Support to Prevent Voltage Instability |
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138 | (1) |
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Improvement of Transient Stability |
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138 | (4) |
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Power Oscillation Damping |
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142 | (1) |
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Summary of Compensator Requirements |
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143 | (1) |
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Methods of Controllable Var Generation |
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144 | (35) |
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Variable Impedance Type Static Var Generators |
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145 | (19) |
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Switching Converter Type Var Generators |
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164 | (13) |
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Hybrid Var Generators: Switching Converter with TSC and TCR |
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177 | (1) |
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Summary of Static Var Generators |
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178 | (1) |
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Static Var Compensators: SVC and STATCOM |
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179 | (18) |
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183 | (1) |
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Transfer Function and Dynamic Performance |
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184 | (4) |
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Transient Stability Enhancement and Power Oscillation Damping |
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188 | (5) |
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Var Reserve (Operating Point) Control |
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193 | (2) |
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Summary of Compensator Control |
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195 | (2) |
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Comparison Between STATCOM and SVC |
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197 | (8) |
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V-I and V-Q Characteristics |
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197 | (2) |
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199 | (2) |
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201 | (1) |
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Capability to Exchange Real Power |
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201 | (1) |
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Operation With Unbalanced AC System |
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202 | (2) |
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Loss Versus Var Output Characteristic |
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204 | (1) |
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Physical Size and Installation |
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204 | (1) |
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Merits of Hybrid Compensator |
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205 | (1) |
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205 | (4) |
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Static Series Compensators: GCSC, TSSC, TCSC, and SSSC |
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209 | (58) |
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Objectives of Series Compensation |
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209 | (7) |
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Concept of Series Capactive Compensation |
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210 | (1) |
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211 | (1) |
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Improvement of Transient Stability |
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212 | (1) |
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Power Oscillation Damping |
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213 | (1) |
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Subsynchronous Oscillation Damping |
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214 | (1) |
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Summary of Functional Requirements |
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215 | (1) |
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Approaches to Controlled Series Compensation |
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216 | (1) |
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Variable Impedance Type Series Compensators |
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216 | (27) |
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GTO Thyristor-Controlled Series Capacitor (GCSC) |
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216 | (7) |
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Thyristor-Switched Series Capacitor (TSSC) |
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223 | (2) |
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Thyristor-Controlled Series Capacitor (TCSC) |
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225 | (11) |
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Subsynchronous Characteristics |
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236 | (3) |
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Basic Operating Control Schemes for GCSC, TSSC, and TCSC |
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239 | (4) |
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Switching Converter Type Series Compensators |
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243 | (16) |
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The Static Synchronous Series Compensator (SSSC) |
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244 | (1) |
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Transmitted Power Versus Transmission Angle Characteristic |
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245 | (3) |
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Control Range and VA Rating |
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248 | (2) |
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Capability to Provide Real Power Compensation |
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250 | (4) |
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Immunity to Subsynchronous Resonance |
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254 | (3) |
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257 | (2) |
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External (System) Control for Series Reactive Compensators |
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259 | (2) |
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Summary of Characteristics and Features |
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261 | (6) |
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Static Voltage and Phase Angle Regulators: TCVR and TCPAR |
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267 | (30) |
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Objectives of Voltage and Phase Angle Regulators |
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267 | (10) |
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Voltage and Phase Angle Regulation |
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269 | (1) |
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Power Flow Control by Phase Angle Regulators |
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270 | (2) |
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Real and Reactive Loop Power Flow Control |
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272 | (2) |
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Improvement of Transient Stability with Phase Angle Regulators |
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274 | (2) |
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Power Oscillation Damping with Phase Angle Regulators |
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276 | (1) |
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Summary of Functional Requirements |
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277 | (1) |
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Approaches to Thyristor-Controlled Voltage and Phase Angle Regulators (TCVRs and TCPARs) |
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277 | (13) |
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Continuously Controllable Thyristor Tap Changers |
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280 | (6) |
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Thyristor Tap Changer with Discrete Level Control |
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286 | (3) |
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Thyristor Tap Changer Valve Rating Considerations |
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289 | (1) |
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Switching Converter-Based Voltage and Phase Angle Regulators |
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290 | (3) |
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Hybrid Phase Angle Regulators |
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293 | (4) |
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Combined Compensators: Unified Power Flow Controller (UPFC) and Interline Power Flow Controller (IPFC) |
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297 | (56) |
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297 | (2) |
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The Unified Power Flow Controller |
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299 | (34) |
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Basic Operating Principles |
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300 | (1) |
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Conventional Transmission Control Capabilities |
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301 | (4) |
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Independent Real and Reactive Power Flow Control |
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305 | (3) |
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Comparison of UPFC to Series Compensators and Phase Angle Regulators |
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308 | (7) |
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315 | (4) |
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Basic Control System for P and Q Control |
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319 | (3) |
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322 | (7) |
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Hybrid Arrangements: UPFC with a Phase Shifting Transformer |
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329 | (4) |
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The Interline Power Flow Controller (IPFC) |
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333 | (15) |
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Basic Operating Principles and Characteristics |
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334 | (9) |
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343 | (1) |
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344 | (2) |
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Practical and Application Considerations |
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346 | (2) |
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Generalized and Multifunctional FACTS Controllers |
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348 | (5) |
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Special Purpose Facts Controllers: NGH-SSR Damping Scheme and Thyristor-Controlled Braking Resistor |
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353 | (20) |
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353 | (5) |
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358 | (4) |
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358 | (3) |
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Design and Operation Aspects |
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361 | (1) |
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Thyristor-Controlled Braking Resistor (TCBR) |
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362 | (11) |
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362 | (2) |
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Design and Operation Aspects |
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364 | (9) |
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373 | (52) |
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WAPA's Kayenta Advanced Series Capacitor (ASC) |
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373 | (9) |
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Introduction and Planning Aspects |
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373 | (3) |
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376 | (1) |
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Design and Operational Aspects |
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377 | (3) |
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380 | (2) |
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BPA's Slatt Thyristor-Controlled Series Capacitor (TCSC) |
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382 | (12) |
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Introduction and Planning Aspects |
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382 | (2) |
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Functional Specifications |
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384 | (3) |
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Design and Operational Aspects |
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387 | (5) |
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392 | (2) |
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TVA's Sullivan Static Synchronous Compensator (STATCOM) |
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394 | (13) |
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Introduction and Planning Aspects |
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394 | (2) |
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396 | (4) |
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400 | (1) |
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401 | (6) |
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407 | (1) |
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AEP's Inez Unified Power Flow Controller (UPFC) |
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407 | (18) |
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Introduction and Planning Aspects |
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407 | (4) |
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411 | (3) |
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414 | (9) |
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423 | (2) |
| Index |
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425 | (6) |
| About the Authors |
|
431 | |