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

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    TCSC在抑制多機電力系統(tǒng)次同步振蕩中的應(yīng)用研究

    來源:電工電氣發(fā)布時間:2016-04-05 17:05 瀏覽次數(shù):787

    TCSC在抑制多機電力系統(tǒng)次同步振蕩中的應(yīng)用研究 

    吳小剛,康積濤,梁植淇 
    西南交通大學(xué) 電氣工程學(xué)院,四川 成都 610031 
     

    摘 要:在PSCAD/EMTDC平臺構(gòu)建同電廠和不同電廠兩機系統(tǒng)模型,結(jié)合測試信號法和Prony算法,分析了系統(tǒng)發(fā)生次同步諧振的可能性及可控串聯(lián)補償(TCSC)抑制同型和不同型兩機系統(tǒng)次同步振蕩的效果。仿真結(jié)果表明,采取新的基準容量下,同型兩機等值系統(tǒng)的電氣阻尼為原單機時候的兩倍左右;TCSC在抑制兩機不同型系統(tǒng)同步諧振(SSR)問題時,需要分別為不同發(fā)電機設(shè)計附加次同步阻尼控制器,且位于不同電廠的兩機軸系之間不存在明顯的扭振相互作用。
    關(guān)鍵詞:次同步諧振;可控串聯(lián)補償;測試信號法
    中圖分類號:TM712 文獻標識碼:A 文章編號:1007-3175(2013)12-0017-05


    Application Study on Thyristor Controlled Series Compensation in Inhibition of Sub-Synchronous Oscillation for Multi-Machine Power System 

    WU Xiao-gang, KANG Ji-tao, LIANG Zhi-qi 
    School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China 
     

    Abstract: The two machines system model, which is in the same power plant or in the different power plants, was established on PSCAD/EMTDC platform. Combined with the test signal method and Prony algorithm, this paper analyzed the possibility of system sub-synchronous oscillation and the effect of thyristor controlled series compensation (TCSC) inhibiting sub-synchronous oscillation of homotype and different type two machines system. Simulation result shows that in adoption of new bench mark capacity, the electrical damping of the same model of two machines equivalent system is about two times of the single machine system; in issue of TCSC inhibition of two machine different model system SSR, there was a need to design additional sub-synchronous damping controller for different generators, and there was no obvious torsional interaction between two machines shaft system in different electric power plants.
              Key words: subsynchronous oscillation; thyristor controlled series compensation; test signal method


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