±800kV特高压直流工程创新实践(英文)  

Practice and Innovation in the ±800kV UHVDC Demonstration Project

作　　者：孙昕[1] 刘泽洪[1] 高理迎[1] 丁一工[1] 

机构地区：[1]国家电网公司,北京市西城区100031

出　　处：《中国电机工程学报》2009年第22期35-45,共11页Proceedings of the CSEE

摘　　要：建设±800kV特高压直流输电示范工程是目前国家电网公司的主要任务,目标是将中国西南部清洁的水电能源输送到东部的能源负荷中心,切实贯彻国家"西电东送"的总体能源战略政策。国家电网公司在±800kV特高压直流输电示范工程的设计与建设的实践中,采用大量的不同于以往常规直流工程的新的设计理念和技术,这些新的设计特点将对后续的直流工程起到很好的借鉴作用。该文对这些特点进行详细论述,涉及方面包括主回路设计、直流主设备(包括晶闸管换流阀、换流变压器和平波电抗器等)、控制保护、提高可靠性与可用度的措施、阀厅与换流区域的优化设计、直流滤波器与直流场的特点、噪声控制、接地的设计创新、融冰的设计创新等。The ±800 kV UHVDC transmission system now is the main project for the state grid corporation of China （SGCC） to fulfill the mission of delivering the clean hydropower from Southwest China to East China （the load center）, and it is an essential part of China＇s national energy strategy of “West-East Power Transmission”. In the process of design and construction of the Xiangjiaba-Shanghai ±800 kV UHVDC project, new design philosophy and technologies are introduced, different from those used in the former HVDC projects by SGCC. All these new design features will be of good reference value for the future HVDC projects. In this paper these features are studied in detail, such as the main circuit design, insulation coordination and external insulation design, main DC equipment （including thyristor valve, converter transformer, smoothing reactor, etc.）, control and protection, measures for the high reliability and availability, optimization design of the valve hall and converter transformer yard, features of the DC filter design and DC yard layout, audible noise control, innovative features of the ground electrode, design innovation of the de-icing.

关 键 词：特高压直流 示范工程 创新 

分 类 号：TM72[电气工程—电力系统及自动化]