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特高压直流输电系统规划设计

DOI: 10.13336/j.1003-6520.hve.2015.08.007, PP. 2545-2549

Keywords: 特高压直流,换流站,环境影响,安全稳定,接线方式,可靠性

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Abstract:

特高压直流输电系统具有电压等级高、输送容量大、输电距离远、运行控制灵活等特点。数量众多的±800kV直流输电工程相继建成投运和持续安全稳定运行,标志着特高压直流输电技术已经成熟,具备大规模应用的条件。针对特高压直流输电系统对环境以及电网安全的影响等焦点问题,在总结国内外特高压直流输电技术特点的基础上,阐述了特高压直流输电系统规划设计中应关注的站址选择、环境影响、技术方案、安全稳定等方面的关键问题和解决思路,以提高工程的经济性和电网运行的可靠性。研究表明,伴随着电力电子技术的快速发展,特高压直流输电作为一种成熟适用技术,其电压等级、输电规模将进一步提升,新型换流技术的应用也将成为可能。

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