Flexible DC Converter Valve

The world's first ±800kV/5000MW flexible DC transmission system converter valve developed by TBEA New Energy adopts a series of technologies for overhead flexible DC transmission without locking, which solves the problem of "DC" in the industry when flexible DC transmission systems are applied to overhead transmission lines. Fault self-clearing and system restart, DC voltage reduction operation, valve group on-line switching" three major problems, with multiple bypass protection design, no black Mocha zero trip in the system, overall loss < 0.6%, volume reduced by 10% compared with peers, Link delay < 25μs, module split design, safe and efficient disassembly and assembly maintenance, quasi-military-grade boards, zero failures in extreme electromagnetic compatibility environments, etc., and the voltage level of flexible DC transmission is raised from ±500kV to ±800kV in one fell swoop , the power transmission capacity has been increased from 1 million kilowatts to 5 million kilowatts, and the main performance indicators are at the international leading level, leading the technological development of the flexible direct current transmission industry.