Core Insights - The Kunliulong DC project has achieved a record operational duration of 1,681 hours at full load during the peak summer period, showcasing its exceptional power supply capability [1] - The project is recognized as a significant advancement in flexible DC technology, with 19 world-first achievements that enhance voltage levels, transmission capacity, and reliability [1] - The project has facilitated the successful application of several domestically developed technologies, reducing reliance on foreign components and enhancing China's leadership in flexible DC technology [2] Group 1 - The Kunliulong DC project has operated for a total of 5,636.49 hours at full load since its commissioning, contributing to the high-quality development of the Guangdong-Hong Kong-Macao Greater Bay Area [1] - The project integrates ultra-high voltage flexible DC with long-distance overhead lines, breaking the convention of using only cable transmission for flexible DC, thus opening new pathways for renewable energy consumption [1] - The project has developed the world's shortest delay and most control objects in its ultra-high voltage flexible DC transmission control system, ensuring stable power transmission [1] Group 2 - The Kunliulong DC project has successfully validated and tested a number of domestically produced major autonomous technology equipment, including the domestically developed 6.5 kV/3000 A IGBT module [2] - The project has achieved large-scale application of 17 domestically produced first sets of equipment, including the ±800 kV quantum current sensor and high-voltage DC valve cooling system main pump seal [2] - The project exemplifies the technological demonstration effect of the Southern Power Grid, reinforcing China's position in the flexible DC field [2]