介绍了特高压交直流输电系统换流站的多种接线方式，分析了换流站运行可靠性、分期建设及换流变压器的制造、运输等因素对交流侧的影响。并结合福建省特殊的地理气候环境，通过采用PSCAD电磁仿真软件进行分析验证。结果表明：双12脉动串联接线在目前情况下是一种较为适合的接线方式，其为规划中的由浙西接入福建电网的±800 kV、6400 MW特高压直流输电系统的接线方式提供了参考。%Introduction was made to the multiple-line connection method of ultra-high voltage (UHV) alternating current (AC)/direct current (DC) transmission convertor station. Analysis was made to the operation reliability of convertor station, impacts of construction in stages, manufacturing of converting transformer;transport etc factors at AC side. This paper combined with Fujian province special geographic climate environment to carry out analysis verification via adoption of PSCAD electromagnetic simulation software. The re-sult shows that double 12 pulse series connection is a more suitable way of line connection method, it has provided a reference for line connection way from the west Zhejiang to Fujian grid of positive and negative 800 kV, 6 400 MW UHVDC transmission system.
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