±800 kV特高压换流站直流场雷电过电压仿真研究
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国家电网公司,国家电网公司运行分公司郑州管理处,华北电力大学河北省输变电设备安全防御重点实验室,华北电力大学河北省输变电设备安全防御重点实验室

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TM863

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中央高校科研业务费专项资金资助项目(2017MS92)和国家重点研发计划项目(2016YFB0900802)资助


Simulation Study of Lightning Overvoltage in Direct Current Field of ±800 kV Ultral High Voltage Converter Station
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State Grid Corporation of China,,,

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    摘要:

    针对某±800 kV特高压换流站直流分压器在雷电天气下发生空气间隙或沿面闪络故障,为分析其故障原因,论文采用电磁暂态仿真程序计算了换流场避雷线布置方案下雷电绕过避雷线直击直流分压器的直击雷过电压和换流站雷电侵入波过电压,验证分析了其绝缘配合,提出了进一步需要研究的问题和防治措施建议。

    Abstract:

    This paper is centered on a Direct Current(DC) voltage divider fault in a ± 800 kV ultral high voltage(UHV) converter station under thunderstorms. The fault may be caused by air gap breakdown or surface flashover. In order to analyze the cause of the fault, the alternative transients program-the electromagnetic transients program(ATP-EMTP) was used. In the layout scheme of lightning shield line in the converter station, the direct thunder overvoltage with the DC voltage divider had struck by thunder directly and the lightning invaded overvoltage were simulated by ATP-EMTP. The insulation coordination was verified with simulated results. Lastly, the further research and control measures were proposed in this paper.

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段 昊,要静武,刘贺龙,等. ±800 kV特高压换流站直流场雷电过电压仿真研究[J]. 科学技术与工程, 2018, 18(34): .
Duan Hao,, and. Simulation Study of Lightning Overvoltage in Direct Current Field of ±800 kV Ultral High Voltage Converter Station[J]. Science Technology and Engineering,2018,18(34).

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历史
  • 收稿日期:2018-06-18
  • 最后修改日期:2018-09-20
  • 录用日期:2018-09-26
  • 在线发布日期: 2018-12-20
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