PREFACE SUMMARY 1 UHV AC Power Transmission Technology 1.1 Overview 1.1.1 International Exploration 1.1.2 Develomn i China 1.2 Technology Innovation 1.2.1 Key Technologies on System Research 1.2.2 Key Technologies on Overvoltage and External Insulation 1.. Key Technologies on Electromagnetic Environment 1.2.4 Key Equipment Research and Development Technology 1.2.5 Complete Set of System Integration Technology 1.3 Core Equipment 1.3.1 Transformer 1.3.2 GIS 1.3.3 Circuit rer 1.3.4 Isolating Switch 1.3.5 Lightning Arrester 1.3.6 Post Insulator 1.3.7 Bushing 1.3.8 Voltage Transformer 1.3.9 Current Transformer 1.3.10 Tower 1.3.11 Conductor 1.3.12 Insulator 1.4 Test System 1.5 Standard System 1.6 Typical Projects 1.6.1 Southeast Shanxi-Nanyang-Jingmen 1000 kV Pilot and Demonstration Project 1.6.2 Huainan-Shanghai 1000 kV Project 1.6.3 Mengxi-South Tianjin 1000 kV Project 1.6.4 Yuheng-Weifang 1000 kV Project 1.6.5 Sutong 1000 kV GIL Comprehensive Pipe Gallery Project 1.6.6 Shandong-Hebei 1000 kV Project 1.7 Technical Outlook 1.7.1 UHV Switchgear for Special Applications 1.7.2 UHV Circuit rer with Long Electrica Le nd Large Capacity 1.7.3 UHV Transformer with Key Performance Parameters Monitored 1.7.4 UHV AC High-performance Overvoltage Limiter 1.7.5 Environment-Friendly UHV AC Gas-Insulated Transmission Line (GlL) Power Transmission 1.8 Economic Outlook 2 UHV DC Power Transmission Technology 2.1 Overview 2.1.1 International Exploration 2.1.2 Practice in China 2.2 Technological Innovation 2.2.1 Key ±800 kV Technologies 2.2.2 Key ±1100 kV Technologies 2.. Development of Key Equipment 2.2.4 Line Related Equipment 2.2.5 Innovative Hierarchical Connection Mode . Core Equipment ..1 DC Converter Valve ..2 Converter Transformer .. Smoothing Reactor ..4 Converter Station Filter ..5 Lightning Arrester for Converter Station 2.4 Test System 2.5 Standard System 2.6 Typical Projects 2.6.1 Xiangjiaba-Shanghal ±800 kV UHV DC Transmission Demonstration Project 2.6.2 Xilingol League-Taizhou ±800 kV Transmission Project 2.6.3 inghai-Henan ±800 kV Transmission Project 2.6.4 Belo Monte ±800 kV Transmission Project in Brazil 2.6.5 Zhundong-Wannan ±1100 kV DC Transmission Project 2.7 Technology Outlook 2.7.1 ±1500 kV/20 GW DC Power Transmission Equipment 2.7.2 UHV DC Controllable Lightning Arrester 2.7.3 UHV Hybrid DC Power Transmission Control and Protection 2.7.4 UHV DC cable 2.7.5 UHV DC Power Transmission Equipment for Extreme Environments 2.8 Economic Outlook 3 Flexible Transmission Technology 3.1 Flexible AC transmission system technology 3.1.1 Overview 3.1.2 Core Technology and Equipment 3.1.3 Typical Projects 3.1.4 Technology Outlook 3.1.5 Economic Outlook 3.2 VSC HVDC transmission technology 3.2.1 Overview 3.2.2 Core Technology and Equipment 3.. Typical Projects 3.2.4 Technology Outlook 3.2.5 Economic Outlook EPILOGUE Appendix 1 Key Technical Parameters of UHV Project Appendix 2 Abbreviations/Definitions