【摘要】 三峡电站建成后将供电华中、华东和川东三个地区，届时华中、华东两网的电气联系势必进一步加强。华中——华东联网方案对三峡电力外送和两网的安全稳定运行有着重要影响。本文在比较不同联网方案优缺点的基础上，结合华中电网发展规划和５００千伏交、直流输电系统的运行经验，研究分析了采用纯直流联网的合理性和重要性。更多还原

【Abstract】 When the Three Gorges Station is built,the electric connection between Central China Power System andEast China Power System will be enhanced.The connection schemes of the two power grids will make importantinfluence on the power transimission of the Three Gorges Station and safe operation of two power grids. Based onthe comparison of the disadvantage and advantage for different network connection shemes, and combined with theplanning of Central Cchina’s electric power development and the operation experience of 500kV AC and 500kV DCsystem, in this paper the feasibility and importance of applying pure DC line connection between two power gridsis analvzed.更多还原