摘要
魁北克水电公司Lévis变电站的融冰装置是一项独特的研发成果,设计成可对输电网提供两种截然不同的功能。在一种运行模式下,它是一台HVDC整流器,给从这个变电站引出的735kV和315kV线路提供高达7200A的直流电以融掉这些线路上的覆冰。该融冰装置产生的±17.4kV直流电压可在输电线路不同相之间通过线路开关依次切换。毕竟冰暴是偶发事件,这套装置在其余大部分时间内将以另一种模式,即配置成为一台静止无功补偿器运行,给735kV输电线路提供+250Mvar/-125Mvar的动态无功支持。实现这两种模式转换所需的时间不到1h。
The De-Icer installation at Lévis substation on Hydro Québec＇s High Voltage System is a unique development, designed to provide two distinct functions on the transmission network. In one mode of operation it is a HVDC rectifier, providing a DC current of up to 7 200 A to melt accumulated ice on the 735 kV and 315 kV lines radiating from the station. The ±17.4 kV DC voltage generated by the De-Icer installation can be switched between different phases of the transmission lines in turn, by means of disconnects. However, ice storms are a rare event and for most of its operating life the De-Icer will be re-configured to operate in another mode as an SVC, providing ＋250 Mvar/-125 Mvar of dynamic reactive power support onto the 735 kV transmission system. Reconfiguration between to two modes is designed to take place in less than an hour.
出处
《南方电网技术》
2009年第1期1-6,共6页
Southern Power System Technology
关键词
高压直流输电
柔性交流输电系统
静止无功补偿器
晶闸管控制电抗器
晶闸管投切电容器
冰暴
high voltage direct current transmission （HVDC）
flexible AC transmission system （FACTS）
static var compensator （SVC）
thyristor controlled reactor （TCR）
thyristor switched capacitor （TSC）
ice storm
作者简介
Serge Jourden（1959-），男。阿海珐公司（中国-东亚-太平洋区）高压直流和柔性输电业务发展总监。E-mail：serge．jourden@areva-td．com。
