光耀雪域十四载 “电力天路”的扩容升级与精神守望

Core Viewpoint - The completion of the Qinghai-Tibet DC Phase II expansion project significantly enhances the power transmission capacity of the Qaidam Converter Station, doubling its maximum transmission power from 600,000 kW to 1,200,000 kW, thereby supporting the green development of Tibet and reinforcing the national "West-East Power Transmission" strategy [1][2]. Group 1: Project Development and Achievements - The Qaidam Converter Station has evolved from dual to quadruple converters over 14 years, becoming a benchmark for DC projects in high-altitude and cold regions of China [2]. - Since its initial operation in 2011, the station has transmitted 13.86 billion kWh of electricity to Tibet, with 9.84 billion kWh sent after the successful power reversal in 2015 [2]. - The expansion project, which began in May 2024, aims to upgrade the converter stations in Qaidam and Lhasa, enhancing the transmission capacity to 1,200,000 kW and upgrading the control systems [3]. Group 2: Technological Innovations and Challenges - The Qaidam Converter Station has faced severe challenges such as low temperatures, oxygen deficiency, and complex geological conditions, necessitating strong technological innovation and talent development [5][6]. - Innovations include the development of a "DC control system switching logic optimization technology," which has significantly improved system reliability and has been patented [6]. - The station has achieved over 20 national patents and has addressed 15 core operational challenges in high-altitude environments, contributing to the safety and efficiency of the Qinghai-Tibet interconnected project [6][7]. Group 3: Environmental and Social Responsibility - The Qinghai-Tibet DC transmission line, spanning 1,038 kilometers, is the highest and longest DC project in the world, requiring careful consideration of ecological protection and social responsibility [10]. - Initiatives such as the installation of artificial bird nests have been implemented to protect local wildlife while ensuring the safety of the power grid [10]. - The use of drones for inspections has been upgraded to a regular practice, enhancing operational efficiency and safety in extreme environments [11].