摘要
阐述了特高压直流输电技术具有送电距离远、送电容量大、控制灵活和调度方便等特点,以及在我国应用的迫切性和应用的广阔前景。文中较详细地介绍了特高压直流输电基本参数的选择、换流站的主接线方案选择、换流站主设备(如换流变压器、换流阀、换流变压器套管、穿墙套管等)的选用和配置问题,以及电磁环境问题。研究分析表明,±800kV特高压直流输电的工程应用不存在不能克服的技术问题。文中指出,特高压直流输电工程的电磁环境指标目前可以按±500kV直流的限值来控制。
The characteristics of UHVDC pov, er transmission technology are with long distance and large capacity of pov, er transmission, flexible control and dispatching conveniently, which has the wide prospect of application in China. The paper introduced the topics of UHVDC power transmission in detail, such as selection of basic parameters, main wiring scheme option of converter station, main equipments option in coverter station including converter transfomer, valve, wall bushing as well as the problems of electromagnetic environment. Research analysis shows that engineering application of ± 800 kV UHVDC power transmission does not have the technical problems that can not be solved. It is pointed out that the electromagnetic environment index of UHVDC power transmission can be controlled according to the limit value of ±500 kV HVDC power transmission.
出处
《电力设备》
2006年第3期1-4,共4页
Electrical Equipment
关键词
电力系统
特高压
直流输电
电网
工程应用
power system
UHV
HVDC transmission
power grid
engineering application
