本文選題：串聯(lián)諧振型限流器　切入點：雙分裂電抗器　出處：《電工技術(shù)學(xué)報》2015年06期 　論文類型：期刊論文

【摘要】：串聯(lián)諧振型限流器(Series-Resonant type Fault Current Limiter,SRFCL)實現(xiàn)故障限流的關(guān)鍵是電容器的旁路(或短路)操作。本文通過引入雙分裂電抗器,改變了電容器的旁路方法,實現(xiàn)了對串聯(lián)諧振型限流器拓?fù)涞母倪M(jìn)。在理論上,分析了改進(jìn)型串聯(lián)諧振型限流器工作原理,并詳細(xì)研究了限流過程中雙分裂電抗器的電感變化特點。研究了電網(wǎng)穩(wěn)態(tài)時雙分裂電抗器繞組自感對限流電抗器和電容器的諧振關(guān)系的影響,和故障限流過程中繞組漏感對限流器的限流能力的調(diào)節(jié)作用和對電容器過流的抑制作用。通過建模仿真,分析了雙分裂電抗器的漏感和電容器振蕩電流的頻率和幅值關(guān)系,研究了避雷器(MOV1和MOV2)殘壓與線路電流和電容器電流的關(guān)系。最后,在參數(shù)優(yōu)化的基礎(chǔ)上,設(shè)計和研制了一臺400V改進(jìn)型串聯(lián)諧振型限流器樣機(jī),測試結(jié)果表明了雙分裂電抗器能夠提高串聯(lián)諧振型限流器的可靠性和限流能力。
[Abstract]:Series-Resonant type Fault Current limiter-SRFCLs (Series-Resonant type Fault Current limiter-SRFCLs) are used to realize fault current limiting. The bypass (or short circuit) operation of capacitors is the key point. In this paper, double splitting reactor is introduced to change the bypass method of capacitors. The topology of series resonant current limiter is improved. In theory, the working principle of the improved series resonant current limiter is analyzed. The characteristics of inductance variation of double splitting reactor during current limiting are studied in detail, and the influence of self-inductance of double split reactor winding on the resonant relationship between current limiter and capacitor is studied in the steady state of power network. Through modeling and simulation, the relationship between leakage inductance of double splitting reactor and frequency and amplitude of capacitor oscillation current is analyzed. The relationship between residual voltage of arrester MOV1 and MOV2) and line current and capacitor current is studied. Finally, a 400V modified series resonant current limiter prototype is designed and developed on the basis of parameter optimization. The test results show that the double splitting reactor can improve the reliability and current limiting capacity of the series resonant current limiter.
【作者單位】： 中國科學(xué)院電工研究所;丹東欣泰電氣科技有限公司;
【基金】：遼寧省科學(xué)技術(shù)計劃資助項目(2013040067-201)
【分類號】：TM471

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