1. Introduction -- 1.1 Background -- 1.2 Electrical Transmission Networks -- 1.3 Conventional Control Mechanisms -- 1.4 Flexible ac Transmission Systems (FACTS) -- 1.5 Emerging Transmission Networks -- 2. Reactor-Power Control in Electrical Power Transmission Systems -- 2.1 Reacrive Power -- 2.2 Uncompensated Transmission Lines -- 2.3 Passive Compensation -- 2.4 Summary -- 3. Principles of Conventional Reactive-Power Compensators -- 3.1 Introduction -- 3.2 Synchronous Condensers -- 3.3 The Saturated Reactor (SR) -- 3.4 The Thyristor-Controlled Reactor (TCR) -- 3.5 The Thyristor-Controlled Transformer (TCT) -- 3.6 The Fixed Capacitor-Thyristor-Controlled Reactor (FC-TCR) -- 3.7 The Mechanically Switched Capacitor-Thristor-Controlled Reactor (MSC-TCR) -- 3.8 The Thyristor-Switched capacitor and Reactor -- 3.9 The Thyristor-Switched capacitor-Thyristor-Controlled Reactor (TSC-TCR) -- 3.10 A Comparison of Different SVCs -- 3.11 Summary -- 4. SVC Control Components and Models -- 4.1 Introduction -- 4.2 Measurement Systems -- 4.3 The Voltage Regulator -- 4.4 Gate-Pulse Generation -- 4.5 The Synchronizing System -- 4.6 Additional Control and Protection Functions -- 4.7 Modeling of SVC for Power-System Studies -- 4.8 Summary -- 5. Conceepts of SVC Voltage Control -- 5.1 Introduction -- 5.2 Voltage Control -- 5.3 Effect of Network Resonances on the Controller Response -- 5.4 The 2nd Harmonic Interaction Between the SVC and ac Network -- 5.5 Application of the SVC to Series-Compensated ac Systems -- 5.6 3rd Harmonic Distortion -- 5.7 Voltage-Controlled Design Studies -- 5.8 Summary -- 6. Applications -- 6.1 Introduction -- 6.2 Increase in Steady-State Power-Transfer Capacity -- 6.3 Enhancement of Transient Stability -- 6.4 Augmentation of Power-System Damping -- 6.5 SVC Mitigation of Subsychronous Resonance (SSR) -- 6.6 Prevention of Voltage Instability -- 6.7 Improvement of HVDC Link Performance -- 6.8 Summary -- 7. The Thyristor-Controlled SeriesCapacitor (TCSC) -- 7.1 Series Compensation.

7.2 The TCSC Controller -- 7.3 Operation of the TCSC -- 7.4 The TSSC -- 7.5 Analysis of the TCSC -- 7.6 Capability Characteristics -- 7.7 Harmonic Performance -- 7.8 Losses -- 7.9 Response of the TCSC -- 7.10 Modeling of the TCSC -- 7.11 Summary -- 8. TCSC Applications -- 8.1 Introduction -- 8.2 Open-Loop Control -- 8.3 Closed-Loop Control -- 8.4 Improvement of the System-Stability Limit -- 8.5 Enhancement of System Damping -- 8.6 Subsynchronous Resonanace (SSR) Mitigation -- 8.7 Voltage-Collapse Prevention -- 8.8 TCSC Installations -- 8.9 Summary -- 9. Coordination of FACTS Controllers -- 9.1 Introduction -- 9.2 Controller Interactions -- 9.3 SVC-SVC Interaction -- 9.4 SVC-HVDC Interaction -- 9.5 SVC-TCSC Interaction -- 9.6 TCSC-TCSC Interaction -- 9.7 Performance Criteria for Damping-Controller Design -- 9.8 Coordination of Multiple Controllers Using Linear-Control Techniques -- 9.9 Coordination of Multiple Controllers using Nonlinear-Control Techniques -- 9.10 Summary -- 10. Emerging FACTS Controllers -- 10.1 Introduction -- 10.2 The STATCOM -- 10.3 THE SSSC -- 10.4 The UPFC -- 10.5 Comparative Evaluation of Different FACTS Controllers -- 10.6 Future Direction of FACTS Technology -- 10.7 Summary -- Appendix A. Design of an SVC Voltage Regulator -- A.1 Study System -- A.2 Method of System Gain -- A.3 Elgen Value Analysis -- A.4 Simulator Studies -- A.5 A Comparison of Physical Simulator results With Analytical and Digital Simulator Results Using Linearized Models -- Appendix B. Transient-Stability Enhancement in a Midpoint SVC-Compensated SMIB System -- Appendix C. Approximate Multimodal decomposition Method for the Design of FACTS Controllers -- C.1 Introduction -- C.2 Modal Analysis of the ith Swing Mode, � -- C.3 Implications of Different Transfer Functions -- C.4 Design of the Damping Controller -- Appendix D. FACTS Terms and Definitions -- Index.