Broadband passive circuit model of capacitor voltage transformer

被引：0

作者：

Liang G. ^{[1
]}

Du X. ^{[1
]}

Xie Y. ^{[2
]}

Jing Y. ^{[1
]}

机构：

[1] Department of Electrical Engineering, North China Electric Power University, Baoding

[2] State Grid Electric Power Company Ganzhou in Jiangxi Power Supply Branch, Ganzhou

来源：

Du, Xinyu (dujianing_djn@163.com) | 1600年 / Science Press卷 / 42期

基金：

中国国家自然科学基金;

关键词：

CVT; Lossy two-port; Model extensions; Passive judgment; Passivity modification; Positive real;

D O I：

10.13336/j.1003-6520.hve.2016.01.023

中图分类号：

学科分类号：

摘要：

To solve the problem that traditional models of capacitor voltage transformer are always not accurate at the high frequency band, we proposed a passivity preserving method based on the "mergence and splitting-up" process for two-port admittance parameters matrix, which could be used to synthesize the passive circuit. Meanwhile, we established a novel 110 kV capacitor voltage transformer model, which could take into account the stray parameter and frequency-dependent properties. The proposed model does not contain negative resistance, inductance, and capacitance, and has good broadband adaptability and versatility. Finally, we carried out a lightning impulse experiment. The results show that the maximum error of the peak is 3.862% by the comparison between the simulation result and the measurement, verifying the accuracy of the proposed CVT model and the effectiveness of the modeling method. © 2016, High Voltage Engineering Editorial Department of CEPI. All right reserved.

引用

页码：179 / 185

页数：6

共 21 条

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