Converter Stations for 800 kV HVDC
Converter Stations for 800 kV HVDC
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800 kV HVDC 换流站
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
V. Lescale
中科院分区：
文献类型：
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作者：
U. Astrom;V. Lescale
特高压直流(UHVDC)的使用，即电压高于使用中的最高电压600千伏，已被发现对距离1000公里以上、功率不超过6400兆瓦的电力区块具有经济吸引力。中国、印度和巴西的几家公用事业公司目前正在计划使用800千伏作为输电电压。为了满足这些需求，ABB一直在进行一项研发计划，目标是开发和测试800千伏高压直流输电所需的设备。研发工作的重点是连接到极电压的设备，特别是换流变压器、套管和外绝缘。由于这些传输系统传输的功率很大，因此必须特别注意可靠性和可用性。因此，对设备、站点布局、控制和保护以及辅助系统进行了彻底的审查。
The use of ultra high voltage direct current (UHVDC), i.e. voltages above the highest in use, 600 kV, has been found to be economically attractive for power blocks up to 6400 MW for distances above 1000 km. Several utilities in China, India and Brazil are at present planning for the use of 800 kV as transmission voltage. In order to meet the demands, ABB has been running an R&D program with the goal to develop and test equipment needed for 800 kV HVDC. The R&D work has focused on equipment connected to the pole voltage, with special attention to converter transformers, bushings and external insulation. Due to the large amount of power transmitted by these transmission systems, special attention must be given to reliability and availability. Thus a thorough review of equipment, station layout, control and protection and auxiliary systems has been done.