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

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±800 kV換流站可控消能裝置電場(chǎng)仿真及試驗(yàn)驗(yàn)證

來(lái)源:電工電氣發(fā)布時(shí)間:2022-03-24 13:24 瀏覽次數(shù):460

±800 kV換流站可控消能裝置電場(chǎng)仿真及試驗(yàn)驗(yàn)證

陶佳, 鄭毅, 張科乾
(常州博瑞電力自動(dòng)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(chǎng)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(jí),為準(zhǔn)確了解各電極表面電場(chǎng)強(qiáng)度的分布情況,考慮計(jì)算及外絕緣試驗(yàn)的可行性,對(duì)可控消能裝置建立了簡(jiǎn)化的三維模型,采用有限元分析中的直流傳導(dǎo)場(chǎng)進(jìn)行計(jì)算。通過(guò)初步仿真結(jié)果與試驗(yàn)結(jié)果對(duì)比分析,對(duì)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(jì)算及試驗(yàn)結(jié)果表明了優(yōu)化措施的合理性及直流場(chǎng)計(jì)算的準(zhǔn)確性。
    關(guān)鍵詞:換流站;可控消能裝置;電場(chǎng)分布;仿真計(jì)算;結(jié)構(gòu)優(yōu)化;試驗(yàn)驗(yàn)證
    中圖分類(lèi)號(hào):TM721.1     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):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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