电测与仪表2017，Vol.54Issue(4)：11-16,6.
基于改进图像法的换流阀严格无源宽频建模
Wideband and passivity modeling of converter valve based on the modified image method
摘要
Abstract
As the pivotal device of HVDC,converter valve will be exposed to various kinds of overvoltage (thunder and VFTO and so on).The frequency domain of these overvoltage is wide,which is up to dozens even hundreds MHz.And research the harm of the overvoltage by the use of simulation is very needed,but the common simulation software (EMTP and PSCAD) are only suitable to the frequency under 10 kHz.Thus,there need to build the wideband model of the converter valve and the model can be used in the simulation of EMTP and PSCAD.In this paper,first of all,the wideband characteristics of the components of valves are measured by vector network analyzer,then,the wideband models of the components are obtained by the modified image method,finally,compare the wideband models with the measurements by the frequency scan of the EMTP,and it is proved that the models are accurate.Besides,the parameters of the models are non-negative,which means the model is strictly passive.关键词
换流阀/改进图像法/宽频建模/严格无源Key words
converter valves/modified image method/wideband modeling/strictly passive分类
信息技术与安全科学引用本文复制引用
戴丽莉,张广勇,原菊梅,闫根弟,张烨..基于改进图像法的换流阀严格无源宽频建模[J].电测与仪表,2017,54(4):11-16,6.基金项目
山西省自然科学基金资助项目(2013011018-2) （2013011018-2）
