发布时间：2025-04-30

论文名称：Research of Impedance Characteristics for Medium Voltage Power Networks

发表刊物：IEEE Transactions on Power Delivery

摘要：The general method to investigate the impedance characteristics with a network analyzer is discussed. The common properties of the impedance are studied based on two-months observation of two 10-kV medium-voltage power networks. Meanwhile, the difference of the impedance measured at the headside and tailside of a feeder, the impedance characteristic impacted by the operating mode of the power system, the time variance of the impedance, and the characteristic obtained from a different coupling mode are also studied carefully. The results show that the characteristic impedance is in correlation with the power system structure and its configurations, and its value is about several tenths of ohms. The input impedance varies scarcely with the time. The capacitor group connected to the bus has no influence on the input impedance. And the input impedances in common mode and differential mode are both symmetric. The impedance value in differential-mode coupling is higher than that in common-mode coupling.

合写作者：Yang Xiaoxian ; Zheng Tao ; Zhang Baohui ; Ye Fengchun ; Duan Jiandong ; Shi Min

卷号：Volume: 22 , Issue: 2

页面范围：870 - 878

是否译文：否

发表时间：2007-04-02