發(fā)布時間：2018-06-27 06:25

  本文選題：故障限流器 + 短路電流��； 參考：《電氣應用》2016年23期

【摘要】：探究了一種經濟型固態(tài)故障限流器(Solid-State Fault Current Limiter,SSFCL),不僅研究了該SSFCL的拓撲結構,而且設計了其控制結構模型。在正常情況下,該SSFCL內部串聯諧振,此時對外表現為非常低的阻抗值;在故障條件下,該SSFCL的控制結構通過自動觸發(fā)使得晶體管達到飽和態(tài)從而將電容短路,此時限流電感迅速接入電路,對外表現為非常高的阻抗值。該SSFCL除了能夠自動控制外,還可以通過故障檢測算法由外部控制命令來控制。最后在Matlab仿真平臺上搭建和測試了該SSFCL,結果表明,該SSFCL可以在短時間內有力地限制住故障電流,提高了電網的穩(wěn)定性且保證了電網的經濟運行。
[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)大學電氣與自動化工程學院;
【分類號】：TM471

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本文編號：2072982