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  • [1]任麗苗,馬建橋,徐金陽,等.金具結構對動車組受電弓支柱絕緣子附近區域電場 分布的影響分析[J].高壓電器,2019,55(08):212-217.[doi:10.13296/j.1001-1609.hva.2019.08.030]
     REN Limiao,MA Jianqiao,XU Jinyang,et al.Influence of Fitting Structure on Local Electric Field Intensity Around Pantograph Supporting Insulators of Electric Multiple Units[J].High Voltage Apparatus,2019,55(08):212-217.[doi:10.13296/j.1001-1609.hva.2019.08.030]
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    金具結構對動車組受電弓支柱絕緣子附近區域電場 分布的影響分析()
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    《高壓電器》[ISSN:1001-1609/CN:61-11271/TM]

    卷:
    第55卷
    期數:
    2019年08期
    頁碼:
    212-217
    欄目:
    研究與分析
    出版日期:
    2019-08-15

    文章信息/Info

    Title:
    Influence of Fitting Structure on Local Electric Field Intensity Around Pantograph Supporting Insulators of Electric Multiple Units
    作者:
    任麗苗1 馬建橋1 徐金陽1 王碧霞1 孫 成2
    (1. 蘭州交通大學自動化與電氣工程學院, 蘭州 730070; 2. 北京交通大學, 北京 100091)
    Author(s):
    REN Limiao1 MA Jianqiao1 XU Jinyang1 WANG Bixia1 SUN Cheng2
    (1. College of Automation & Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. Beijing Jiaotong University, Beijing 100091, China)
    關鍵詞:
    動車組 受電弓支柱絕緣子 金具結構 電場分布
    Keywords:
    electric multiple units (EMU) pantograph post insulator metal fitting structure electric field intensity distribution
    DOI:
    10.13296/j.1001-1609.hva.2019.08.030
    摘要:
    動車組車頂受電弓支柱絕緣子高壓側金具結構會影響絕緣子表面電場強度的分布均勻度,電場不均勻會造成絕緣子閃絡頻次增加。爲此,基于靜電場理論,聯合Solidworks軟件和有限元軟件靜電場模塊仿真分析了金具結構對絕緣子附近空氣域及絕緣子表面電位、電場分布變化的影響,優化設計金具結構並試驗驗證其效果。研究結果表明,現有連接方式下高壓側金具連接處附近場強分布不均勻,優化後的連接金具可有效降低局部區域電位梯度,電位梯度的降低有助于減小閃絡故障的發生頻次。文中研究結果可爲後續動車組受電弓絕緣子結構優化設計及試驗驗證提供參考。
    Abstract:
    The metal fitting structure on high voltage side of the EMU (electric multiple units) roof pantograph post insulator affects the distribution uniformity of the electric field intensity on the insulator surface, and the uneven electric field may lead to the increase of the flashover frequency on the insulator. In this study, the software Solidworks and the electrostatic field module of finite element software are employed to simulate and analyze the influences of the metal fitting structure on the air domain near the insulator, as well as the surface potential and electric field distribution on the insulator, on the basis of the electrostatic field theory. The structure of the fitting is optimized and the effect is verified by experiments. The results show that the electric field intensity distribution at the fitting joint on high voltage side is uneven under the existing connection mode, and the optimized connecting fittings can effectively reduce the local potential gradient to decrease the frequency of flashover faults. This study may provide a reference for structural optimization design and experimental verification of pantograph insulators in EMU.

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    備注/Memo

    備注/Memo:
    任麗苗(1982—),女,講師,研究方向爲高電壓絕緣、繼電保護等。 馬建橋(1982—),男,副教授,研究方向爲高壓電氣設備外絕緣特性等(通訊作者)。收稿日期:2019-02-26; 修回日期:2019-04-28 基金項目:蘭州交通大學百名青年優秀人才培養計劃基金資助(152022);甘肅省教育廳科研基金(2018A-025);甘肅省自然科學基金(131ORJZAO45)。 Project Supported by Program for Hundred Young Talents in Lanzhou Jiaotong University(152022),Research Fund of Gansu Education Department(2018A-025), Natural Science Foundation of Gansu Province(131ORJZAO45).
    更新日期/Last Update: 2019-08-16