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

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    基于RC裝置的風(fēng)電場合閘暫態(tài)過電壓防護(hù)的仿真研究

    來源:電工電氣發(fā)布時(shí)間:2016-06-01 10:01 瀏覽次數(shù):8
    基于RC裝置的風(fēng)電場合閘暫態(tài)過電壓防護(hù)的仿真研究
     
    龔祖春1,孫留學(xué)2,張濤2,胡漢梅2
    (1 中國葛洲壩集團(tuán)電力有限責(zé)任公司,湖北 宜昌 443002;
    2 三峽大學(xué) 電氣與新能源學(xué)院,湖北 宜昌 443002)
     
        摘 要:介紹了風(fēng)電場電氣設(shè)備遭受過電壓時(shí)的特點(diǎn)及其危害,采用PSCAD 電磁暫態(tài)仿真軟件建立了風(fēng)電場模型,分析了風(fēng)電場合閘過電壓的過程,提出了阻容吸收器防護(hù)機(jī)端變壓器過電壓措施,結(jié)果表明:采用合適的阻容保護(hù)裝置可以將過電壓幅值和陡度限制在合理的電壓范圍內(nèi),能夠有效防止風(fēng)電場合閘過電壓。
        關(guān)鍵詞:風(fēng)電場;過電壓;RC 裝置;絕緣;電纜系統(tǒng)
    中圖分類號(hào):TM614;TM862 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2016)05-0019-04
     
    Simulation Study on Transient Overvoltage Protection in Wind Farms Closing Based on RC Device
     
    GONG Zuchun1, SUN Liu-xue2, ZHANG Tao2, HU Han-mei2
    (1 Gezhouba Group's Electric Power Company Ltd, Yichang 443002, China;
    2 College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China)
     
        Abstract: Introduction was made to the characteristic and its damages of overvoltage in wind farms. This paper established a wind farm model of PSCAD electromagnetic transient simulation, analyzed the process of closing overvoltage, and proposed overvoltage protection measures of wind turbines transformers using resistance-capacitance absorber. The results show that adopting suitable resistance-capacitance protector could restrict the amplitude of voltage and gradient within the reasonable scope, which prevents wind farms closing overvoltage effectively.
        Key words: wind farm; overvoltage; RC device; insulation; cable system
     
    參考文獻(xiàn)
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    [2] 薛福成. 變配電所異常過電壓分析與治理[D]. 北京:北京交通大學(xué),2010.
    [3] 劉志林,貴勛,張建成. 風(fēng)電并網(wǎng)合閘操作過電壓研究[J]. 電力科學(xué)與工程,2011,27(11):8-11.
    [4] 劉敏. 風(fēng)能發(fā)電場35 kV電網(wǎng)中性點(diǎn)運(yùn)行方式研究[D]. 重慶:重慶大學(xué),2010.
    [5] 余宏橋,陳水明. 微電網(wǎng)中合閘空載電纜時(shí)的過電壓[J]. 電力系統(tǒng)自動(dòng)化,2010,34(6):70-73.
    [6] Bebre S, Daniel A.Analysis of Transients in Wind Parks:Modelling of System Components and Experimental Verification[D].Gotenborg:Chalmers University of Technology,2007.
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    [8] 蘇小芳,熊信恒,袁明陽. 一種抑制切除空載電爐變壓器過電壓方法的研究[J]. 電氣應(yīng)用,2015,34(16):94-98.
    [9] 劉生輝,劉文澤,王克英. 真空斷路器切除電容器組導(dǎo)致兩相重燃的EMTP建模[J]. 高壓電器,2015,51(5):26-30.

     

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