
金上—湖北±800千伏特高压直流输电工程于9月28日完成首次年度检修,两座换流站双极解锁成功,1600余人参与检修,消除缺陷300余项,提升输电通道运行稳定性和供电可靠性,为清洁能源外送和秋冬季电力保供提供保障。
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金上—湖北±800千伏特高压直流输电工程是国内首条深入川藏高原腹地的特高压直流输电工程,于2025年底建成投运,起于金沙江上游,线路横跨西藏、四川、重庆、湖北,送端在西藏昌都和四川甘孜分别建成卡麦、帮果两座换流站。
中新网成都9月29日电(记者 刘忠俊)9月28日,随着卡麦、帮果两座换流站双极解锁成功,金上—湖北±800千伏特高压直流输电工程(以下简称“金上—湖北工程”)首次年度检修顺利收官。
作业人员正在检查金上—湖北±800千伏特高压直流输电工程762号塔的绝缘子串。曹颀 摄
据了解,作为国内首条深入川藏高原腹地的特高压直流输电工程,金上—湖北工程于2025年底建成投运。工程起于金沙江上游,线路横跨西藏、四川、重庆、湖北,送端在西藏昌都、四川甘孜分别建成卡麦、帮果两座换流站。仅在四川境内,线路里程就超过860公里,纵贯甘孜高原、雅安横断山区和川东北丘陵。跨度大、点位多、有效窗口期短,是检修作业绕不开的难点。
这次年度检修为期15天,两座换流站和输电线路同步开展首检,1600余名作业人员坚守一线。国网四川省电力公司牵头统筹,多家参检单位协同作业。现场勘察、方案编制、预案推演等准备工作提前落实到位,为检修安全有序推进打牢了基础。
卡麦、帮果两座换流站采用全球首创的“分址级联”建设与协同运行模式,技术创新性强,运维标准高。换流站检修采用“两站一体、主站统筹、跨站联动”的模式,作业人员要经受高原缺氧、大风降雨、强紫外线等极端气候的考验。团队把检前、检中、检后各阶段任务细化为400余项,累计消除各类缺陷300余项,设备运行工况稳定、性能良好。
±800千伏帮果换流站作业人员正在验收换流阀塔。安伟 摄
线路检修中,无人机派上了大用场。它搭载X光检测设备,对耐张线夹、接续管等关键金具进行无损探伤,能精准排查内部压接缺陷。相比传统的人工登塔检测,这种方式既提高了效率,也有效降低了高空作业风险。
金上—湖北工程是川藏地区绿色清洁能源外送的核心通道。此次年度检修进一步提升了特高压输电通道的运行稳定性和供电可靠性,为金沙江上游水电等清洁能源持续稳定外送、区域秋冬季电力保供增添了一份保障。(完)

The result of the Joint Research Center of Tsinghua University Network Research Institute and Qihoo 360, "One Word Settles the World: Systematic Exploration and Exploitation of DNS Silencing Vulnerabilities in Domain Name Resolution" won the "Most Innovative Research Award" at The Pwnie Awards in 2026. This award is known as the Oscars of global white hat hackers and demonstrates China's international influence in the field of network security.

Many middle powers in Asia are investing a lot of public resources in developing local AI basic models to reduce their dependence on the United States and China. However, foreign media warn that the cost of basic model training increases by 3.5 times every year. The cost of next-generation models will far exceed the current scale of subsidies, and maintaining technological leadership requires continuous huge investments. It is difficult to catch up if they fall behind. Singapore chose to fine-tune the existing model as a localization alternative, and experts suggest that Asian countries should deepen their existing industrial advantages in semiconductors, memory chips, and robotics, rather than trying to build a competitive model from scratch. Because the advantages of leading companies have a cumulative effect, and the basic model is updated rapidly, the traditional industrial policy model has limited effect in this field.

The first batch of units 1 and 2 of the Xinjiang Dashixia Water Conservancy Project invested and constructed by China Energy Construction Gezhouba Group were connected to the grid to generate electricity on September 29. The project breaks the world record for concrete-faced gravel dams with a maximum dam height of 247 meters. It has a total installed capacity of 750,000 kilowatts and an average annual power generation of 1.893 billion kilowatt-hours. It can meet the annual electricity needs of about 600,000 households and assume the responsibility of South China. The four prefectures and prefectures in Xinjiang carried out peak load regulation tasks for the power system, and simultaneously transported 3.42 billion cubic meters of water to the Tarim River ecology, alleviating the water shortage problem of more than 6.8 million acres of farmland in the Aksu River Basin, and raising the flood control standard for downstream rivers from a once-in-10-year to a once-in-50-year period.

Two artificial intelligence system-level chips (SoC), ZQ300 and ZQ320, independently developed by China Electronics Technology Research Institute 58, recently completed full-link evaluation and achieved comprehensive performance indicators. The chip adopts a heterogeneous computing architecture, integrates display control, graphics and intelligent computing power, supports multi-source data fusion scenarios, and can be used for intelligent terminals, unmanned platform edge computing and real-time image processing, promoting the engineering application and large-scale deployment of domestic intelligent computing power chips.

NASA announced the latest progress of Boeing Starliner, planning to conduct an unmanned Starliner-1 mission as early as December 2024 or January 2025 to verify improvements, and will conduct a manned mission in 2028. Previously, the Starliner's first manned test flight caused astronauts to be stranded on the space station due to a malfunction. It was deemed a Class A accident. Boeing has made improvements to the spacecraft's thermal environment.

Hou Shifeng, a returned overseas Chinese from the United States, Ph.D., and second-level professor, returned to China in 2009 and founded Shandong Jinlite New Materials Co., Ltd., breaking through key technologies for large-scale green preparation of graphene, building a fully closed-loop production line with independent intellectual property rights, promoting industrialization in new energy, electronics, aerospace and other fields, and promoting the development of Shandong graphene industry cluster through industry-university-research cooperation with overseas Chinese.