Core Insights - The Kunliulong Direct Current Project, the world's first ±800 kV ultra-high voltage flexible direct current transmission project, marks a significant milestone in China's power industry, having operated safely for five years and demonstrating advanced technology in global power transmission [1][7] Group 1: Project Achievements - Over the past five years, the Kunliulong project has delivered more than 113.5 billion kilowatt-hours of clean electricity, equivalent to a reduction of 87 million tons of CO2 emissions, contributing significantly to low-carbon development [1] - The project has achieved 19 world-firsts, showcasing its scale, reliability, and technological maturity, and providing critical technical support for large-scale renewable energy transmission [1][7] Group 2: Technological Innovations - The flexible direct current converter, described as the "heart" of the project, utilizes over 5,000 IGBT modules that operate with high precision, adjusting every 100 microseconds, thus overcoming a major challenge in the global power industry [2] - The control and protection system, referred to as the "super brain," can manage 17,000 control objects with ultra-fast, high-precision coordination, achieving a control response time of under 150 microseconds, setting a new global record [3] - A hybrid topology structure was developed to address lightning strike issues, allowing for rapid fault clearance and restoration of power supply within 0.5 seconds, significantly enhancing grid reliability [4][5] Group 3: Emergency Response and Stability - The flexible direct current technology features an "emergency rescue" capability, enabling quick transitions to support modes during grid faults, thus providing voltage support and ensuring grid safety [6] - The technology has proven to stabilize the integration of renewable energy sources like wind and solar power, addressing challenges in connecting these variable power sources to the grid [6] Group 4: Recognition and Future Prospects - The Kunliulong project has received multiple accolades, including being named one of the "Top Ten Super Projects" by state-owned enterprises and winning the "National Quality Engineering Gold Award" [7] - The project exemplifies China's leadership in high-end power equipment and is seen as a significant contribution to global sustainable energy development, with ongoing advancements supporting the construction of a new energy system and achieving carbon neutrality goals [7]
昆柳龙工程投运五周年 开创世界特高压技术新纪元
Zhong Guo Neng Yuan Wang·2025-09-12 01:37