高压电器2017，Vol.53Issue(6)：19-24,29,7.DOI:10.13296/j.1001-1609.hva.2017.06.004
特高压电容分压器宽频无源等效电路建模方法
Modeling the Wideband Passive Equivalent Circuit for UHV Capacitor Voltage Transformer
摘要
Abstract
To improve the transient performance of ultra high voltage (UHV) capacitor voltage transformer and analyze its voltage dividing characteristics in wideband,the impedance of a 1 000 kV capacitor voltage divider was measured,and a wide frequency model of UHV capacitor voltage divider was built.First,the impedance of the capacitor voltage divider was measure.Second,the vector fitting method and circuit synthesis theory as well as the measured data were employed to establish a wideband equivalent circuit model of CVT capacitor voltage divider,and the pattern search algorithm was adopted to optimize the equivalent circuit.Third,the voltage dividing characteristics of the divider at different frequency were analyzed with the proposed model.This study may provide a theoretical reference for reasonable setting of equalizing device and manufacturing process improvement of UHV.关键词
特高压电容式电压互感器/矢量匹配法/宽频等效电路模型/模式搜索/无源修正Key words
ultra high voltage capacitor voltage transformer/vector fitting/wide frequency equivalent circuit model/pattern search/passive correction引用本文复制引用
王平,张广勇,李慧奇,李璿..特高压电容分压器宽频无源等效电路建模方法[J].高压电器,2017,53(6):19-24,29,7.基金项目
国家重点研发计划资助项目(2016YFB0900802).Project Supported by the National Key Research and Development Program of China(2016YFB0900802). （2016YFB0900802）
