發(fā)布時(shí)間：2018-06-27 06:25

  本文選題：故障限流器 + 短路電流�。� 參考：《電氣應(yīng)用》2016年23期

【摘要】：探究了一種經(jīng)濟(jì)型固態(tài)故障限流器(Solid-State Fault Current Limiter,SSFCL),不僅研究了該SSFCL的拓?fù)浣Y(jié)構(gòu),而且設(shè)計(jì)了其控制結(jié)構(gòu)模型。在正常情況下,該SSFCL內(nèi)部串聯(lián)諧振,此時(shí)對(duì)外表現(xiàn)為非常低的阻抗值;在故障條件下,該SSFCL的控制結(jié)構(gòu)通過(guò)自動(dòng)觸發(fā)使得晶體管達(dá)到飽和態(tài)從而將電容短路,此時(shí)限流電感迅速接入電路,對(duì)外表現(xiàn)為非常高的阻抗值。該SSFCL除了能夠自動(dòng)控制外,還可以通過(guò)故障檢測(cè)算法由外部控制命令來(lái)控制。最后在Matlab仿真平臺(tái)上搭建和測(cè)試了該SSFCL,結(jié)果表明,該SSFCL可以在短時(shí)間內(nèi)有力地限制住故障電流,提高了電網(wǎng)的穩(wěn)定性且保證了電網(wǎng)的經(jīng)濟(jì)運(yùn)行。
[Abstract]:A kind of Solid-State Fault current limiter SSFCL (Solid-State Fault current limiter) is studied in this paper. Not only the topology of the SSFCL is studied, but also its control structure model is designed. Under normal conditions, the SSFCL is in series resonance, and the external impedance is very low. In the fault condition, the control structure of the SSFCL can cause the transistor to reach saturation state by automatically triggering, thus shorting the capacitor. At this point, the current limiting inductance is quickly connected to the circuit, and the external impedance is very high. In addition to automatic control, the SSFCL can also be controlled by external control commands through fault detection algorithms. Finally, the SSFCLs are built and tested on the Matlab simulation platform. The results show that the SSFCL can limit the fault current in a short time, improve the stability of the power grid and ensure the economic operation of the power grid.
【作者單位】： 合肥工業(yè)大學(xué)電氣與自動(dòng)化工程學(xué)院;
【分類(lèi)號(hào)】：TM471

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本文編號(hào)：2072982