Survey of technologies of line commutated converter based high voltage direct current transmission in China

This paper reviews the applications of line commutated converter based high voltage direct current transmission (LCC-HVDC) technologies in China, with a special focus on UHVDC technology developed in the last 10 years. The paper examines six specific aspects of areas-voltage increase, capacity upgrade, reliability improvement, engineering design innovation, equipment and materials innovation, and the R&D of next step. Subsequent advances in LCC-HVDC technologies in recent years are also discussed.