Flexible DC Transmission Converter Valve

Comprehensively breakthrough and master a complete set of core key technologies such as basic theory, product design, manufacturing process, equivalent testing and engineering application of ±800kV and below flexible DC converter valves. Developed ±200kV-±800kV series converter valve products, and successively achieved first-set demonstration applications in various scenarios such as Zhoushan multi-terminal flexible DC project, Chongqing-Hubei back-to-back interconnection project, Zhangbei DC grid project, and Wudongde UHV multi-terminal hybrid DC transmission project.
Technical Features:
World-leading voltage level and capacity: Voltage level increased to ±800kV, capacity increased to 5000MW
High-reliability flexible DC converter valve core design technology:
Low-loss and compact technology
Cross-redundant communication and dual power supply technology
Water circuit series-parallel design, high cooling efficiency
Black module multi-level bypass protection technology
Double-row valve tower structure and maintenance platform technology
World-leading flexible DC converter valve control and monitoring technology: Intelligent online monitoring technology, board online replacement technology, ultra-low link delay control technology
Successful Cases:
Provided flexible DC transmission for Longmen Converter Station of Wudongde UHV Multi-terminal Hybrid DC Demonstration Project

Chongqing-Hubei DC Back-to-Back Interconnection Project South Channel Converter Valve Equipment

Zhangbei Flexible DC Grid Demonstration Project

Zhoushan Multi-terminal Flexible DC Transmission Demonstration Project