Conventional DC Transmission Converter Valve

The conventional DC transmission converter valve uses high-power thyristors as the core device, adopting air insulation, deionized water cooling and indoor suspended structure. It is suitable for converter stations of different voltage levels below ±1100kV and has been supplied and applied to more than 30 converter stations including Baihetan-Jiangsu, Baihetan-Zhejiang and Pakistan Matiari-Lahore DC projects.
Technical Features:
World-leading voltage level and capacity: Voltage level increased to ±1100kV, current level increased to 6250A
High-reliability multi-physics comprehensive design technology for converter valves:
Modular valve component design, realizing flexible expansion of multiple voltage levels
Valve tower equipped with dedicated maintenance platform and ladder, high operation and maintenance efficiency
Series-parallel water circuit design, high cooling efficiency
Rigid-flexible suspended valve tower structure, strong seismic resistance
Full flame retardant and oil-free design, strong fire resistance
World-leading converter valve control and monitoring technology: Excellent large-scale thyristor series trigger synchronization performance
With valve control full interface signal high-speed recording function
Successful Cases:
Qinghai-Henan ±800kV UHV DC Project

Pakistan Matiari-Lahore +600kV DC Project

Turkey Van City Back-to-Back DC Interconnection Project

Fujian-Guangdong Interconnection Back-to-Back DC Transmission Project