【摘要】：通過構(gòu)建計及地磁感應(yīng)電流(GIC)影響的交流系統(tǒng)仿真模型,研究了在不同運(yùn)行條件下,GIC在Yg-Y接線與Yg-△接線變壓器中GIC流通路徑的特征。研究結(jié)果表明,在變壓器三相繞組不對稱飽和情況下,GIC在變壓器三相繞組中非均勻分布,同時由于GIC的低頻變化特征,GIC可能傳變至變壓器Y(△)側(cè),對繼電保護(hù)系統(tǒng)的可靠運(yùn)行產(chǎn)生影響。
[Abstract]:By constructing a simulation model of AC system considering the influence of geomagnetic induction current (GIC), the characteristics of GIC flow path of GIC in Yg-Y connection and Yg- connection transformer under different operating conditions are studied. The results show that under the condition of asymmetrical saturation of transformer three-phase windings, GIC is unevenly distributed in transformer three-phase windings. At the same time, due to the low frequency variation of GIC, GIC may be transferred to the Y () side of transformer. It has influence on the reliable operation of relay protection system.
【作者單位】： 華北電力大學(xué)新能源電力系統(tǒng)國家重點實驗室;中國電力科學(xué)研究院;
【分類號】：TM41
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本文編號：2462837