藏粤直流输电工程今天启动建设

Core Viewpoint - The construction of the Zang-Guangdong DC project, the world's most powerful and advanced flexible DC transmission project, has commenced, aiming to enhance clean energy transmission from Tibet to the Guangdong-Hong Kong-Macao Greater Bay Area [1] Group 1: Project Overview - The Zang-Guangdong DC project starts in Tibet and spans approximately 2,681 kilometers through Yunnan and Guangxi, ending in Guangdong [1] - The project will include four converter stations located in Changdu and Linzhi in Tibet, as well as Guangzhou and Shenzhen in Guangdong [1] - Upon full operation in 2029, the project is expected to deliver over 43 billion kilowatt-hours of electricity annually to the Greater Bay Area, equivalent to half of the annual output of the Three Gorges Dam, with 100% being clean energy [1] Group 2: Technical Challenges and Solutions - The project faces significant challenges due to its geographical route, which includes traversing the Qinghai-Tibet Plateau, Yunnan-Guizhou Plateau, and South China hills, with nearly 90% of the route being mountainous terrain [1] - The instability of renewable energy generation presents additional challenges for the construction of the Zang-Guangdong project [1] - To ensure the smooth delivery of green electricity to Guangdong, the project employs world-leading "ultra-high voltage multi-terminal flexible DC transmission" technology, which allows for flexible scheduling of green electricity generated at different times and locations, minimizing current disturbances and impacts on the power grid [1] - The technology enables the transmission of green electricity from Tibet to Guangdong in just 9 milliseconds [1]