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首页> 外文期刊>IEEE Transactions on Dielectrics and Electrical Insulation >Influence of wind speed and dust particle size on the corona characteristics of ± 1100 kV fitting models
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Influence of wind speed and dust particle size on the corona characteristics of ± 1100 kV fitting models

机译：风速和粉尘粒径对±1100 kV拟合模型的电晕特性的影响

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摘要

At present, the UHVDC transmission lines in the Northwest China are inevitably built across sandstorm-prone areas, whereas the influences of strong wind and dust particles have not been paid enough attention in the existing design guidelines and standards. Since the corona characteristics are greatly influenced by environmental factors, to study the effect of sandstorm environment on the corona characteristics, corona tests were carried out on five ±1100 kV fitting models under different experimental conditions of wind speed and dust particle size in artificial sandstorm environment. The results show that the corona inception voltage decreases under the influence of wind and dust particles. Moreover, the voltage increases along with the wind speed rising, whereas the particle size shows little effect on the corona characteristics. Then the test results were verified and analyzed by electric field simulation and flow field simulation using ANSYS and Fluent software. These results could promote future DC corona mechanism study and practical engineering.
机译：目前，中国西北地区的特高压直流输电线路不可避免地要跨越沙尘暴地区，而在现有的设计准则和标准中，强风和尘埃颗粒的影响尚未引起足够的重视。由于电晕特性受环境因素的影响很大，为了研究沙尘暴环境对电晕特性的影响，在人工沙尘暴环境中，在不同风速和粉尘粒径的不同实验条件下，对五个±1100 kV拟合模型进行了电晕测试。结果表明，在风尘颗粒的影响下，电晕起始电压降低。而且，电压随着风速的增加而增加，而粒径对电晕特性几乎没有影响。然后使用ANSYS和Fluent软件通过电场模拟和流场模拟对测试结果进行验证和分析。这些结果可以促进未来的直流电晕机理研究和实际工程。

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  • 作者

    Bo He; Heng Zhao; Cheng Chen; Shuming Liu; Zongren Peng;

  • 作者单位

    Xi'an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an, Shaanxi, 710049, P.R. China;

    Xi'an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an, Shaanxi, 710049, P.R. China;

    Xi'an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an, Shaanxi, 710049, P.R. China;

    Xi'an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an, Shaanxi, 710049, P.R. China;

    Xi'an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an, Shaanxi, 710049, P.R. China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Corona; Electric fields; Fitting; Wind speed; Power transmission lines; Discharges (electric); Shock absorbers;

    机译：电晕;电场;拟合;风速;输电线;放电（电）;减震器;

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