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电网技术  2015 

天中特高压直流输电工程系统试验方案

DOI: 10.13335/j.1000-3673.pst.2015.02.008, PP. 349-355

Keywords: ±,800,kV特高压,天中直流输电工程,系统试验方案

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Abstract:

天(山)—中(州)(原哈(密南)—郑(州))±800kV特高压直流输电工程是世界上首个输送容量达8000MW、输电距离长2191.5km的直流输电工程。工程系统试验的特点是首次对目前工程输送容量最大一次设备性能进行检验,首次对全国产化特高压直流控制功能进行验证,首次在送端电网火电、风电和太阳能电力外送系统较弱的方式下进行系统试验。根据这些特点,对天中工程系统试验方案进行了研究,内容包括试验目的、交流和直流系统条件、内容及操作步骤、试验过程中需要测量的交直流信号、试验验收标准以及试验过程中采取的安全措施。借鉴向(家坝)—上(海)、锦(屏)—苏(南)直流输电工程系统试验和运行的经验,增加了一些与控制系统相关的试验和直流偏磁测试试验,对整流侧母线电压控制进行了分析研究,确定了系统试验项目,编制了系统试验方案。工程系统试验结果表明,系统试验方案满足验证工程技术规范要求,保证了工程按期顺利投入运行。

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