大容量架空线柔性直流输电关键技术及前景展望

Discussion on the Key Technology and Prospect of Large-capacity Overhead Line Flexible Direct Current Transmission

柔性直流输电应用技术可以在大容量架空条件下进行建设,可以优化我国能源配置平衡性,属于未来发展的主要趋势之一。文章针对大容量架空线柔性直流输电关键应用技术进行了分析,从直流故障脆弱处理、容量电压等级提升、接线与接地方式部署3个方面进行了论述,同时提出相关解决方法。结合前景展望研究,能够为未来输电建设工作提供重要参考,解决技术应用问题,有利于降低电力网络出现故障的概率,提高整体经济效益。

Flexible HVDC application technology can be constructed under high-capacity overhead conditions and can optimize the balance of energy allocation in my country,which is one of the main trends in future development.The key application technology of large-capacity overhead line flexible DC transmission is analyzed,and three aspects are discussed in terms of fragile handling of DC faults,improvement of capacity and voltage level,and deployment of wiring and grounding methods.At the same time,relevant solutions are proposed.Combining prospective research can provide an important reference for future power transmission construction work,solve application technology application problems,and have a positive impact,which is conducive to reducing the probability of power network failures and improving overall economic benefits.