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    Suzhou Electric Appliance Research Institute
    期刊號: CN32-1800/TM| ISSN1007-3175

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    ±800 kV換流站可控消能裝置電場仿真及試驗驗證

    來源:電工電氣發(fā)布時間:2022-03-24 13:24 瀏覽次數(shù):517

    ±800 kV換流站可控消能裝置電場仿真及試驗驗證

    陶佳, 鄭毅, 張科乾
    (常州博瑞電力自動化設(shè)備有限公司,江蘇 常州 213025)
     
        摘 要:特高壓換流站內(nèi)設(shè)備需要嚴(yán)格控制電極表面電場強(qiáng)度,以防止電暈放電現(xiàn)象。±800 kV 換流站用可控消能裝置子單元較多,且處于不同電壓等級,為準(zhǔn)確了解各電極表面電場強(qiáng)度的分布情況,考慮計算及外絕緣試驗的可行性,對可控消能裝置建立了簡化的三維模型,采用有限元分析中的直流傳導(dǎo)場進(jìn)行計算。通過初步仿真結(jié)果與試驗結(jié)果對比分析,對模型中局放較高的部位進(jìn)行結(jié)構(gòu)優(yōu)化。優(yōu)化后的計算及試驗結(jié)果表明了優(yōu)化措施的合理性及直流場計算的準(zhǔn)確性。
        關(guān)鍵詞:換流站;可控消能裝置;電場分布;仿真計算;結(jié)構(gòu)優(yōu)化;試驗驗證
        中圖分類號:TM721.1     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2022)03-0046-04
     
    Electric Field Simulation and Experimental Verification for Controllable
    Energy Absorption Device in a ±800 kV Converter Station
     
    TAO Jia, ZHENG Yi, ZHANG Ke-qian
    (Changzhou Boil Electric Power Automation Equipments Co., Ltd, Changzhou 213025, China)
     
        Abstract: The equipment in the UHV converter station needs to strictly control the electric field strength on the electrode surface to prevent the corona discharge phenomenon.There are many controllable energy dissipation device sub-units used in ±800 kV converter stations,and they belong to different voltage levels.This paper established a simplified three-dimensional model of the controllable energy absorption device. It used the DC conduction field in the finite element analysis for calculation. To accurately understand the distribution of the electric field intensity on the surface of each electrode, the feasibility of calculation and external insulation test has been considered.Compared the preliminary simulation results with the test results, it optimized the structure of the parts with high partial discharge in the model. The optimized calculation and test results show the rationality of the optimization measures and the accuracy of the DC field calculation.
        Key words: converter station; controllable energy absorption device; electric field distribution; simulation calcuation; structure optimization;experimental verification
     
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