典型文献
Circuit Model with Current Interruption for Hybrid High Voltage DC Circuit Breakers to Achieve Precise Current Experiments
文献摘要：
The current interruption test based on an LC resonance circuit for hybrid DC circuit breakers(HVDC CBs)is widely employed to characterize the current interruption capability of CBs.In order to ensure a high-fidelity replica of the fault current in a high voltage application,this paper first proposes an equivalent model of the test circuit,where not only parasitic resistances but also the threshold voltages and on-state resistances of various semiconductor devices are considered.Moreover,the analytical formula of the test current is derived by including the working principle of the HVDC CB.Secondly,the parameter extraction method,which combines finite element analysis and measurements by an impedance analyzer,is given in this paper.The extracted result implies that,in current interruption transients,equivalent resistances of 500 kV CB are as large as 535 mΩ,which have a significant influence on current waveforms.Thirdly,the 34 kV/25 kA current interruption test for the 500 kV CB is conducted.The measured results are proved to be consistent with the analytical results obtained from the proposed model,and the relative error is less than 2％.
文献关键词：
中图分类号：
作者姓名：
Zhonghao Dongye;Lei Qi;Bing Ji;Xiaoguang Wei;Xiang Cui
作者机构：
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,Chin.;School of Engineering,University of Leicester,LE1 7RH Leicester,U.K;State Key Laboratory of Advanced Power Transmis-sion Technology,Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102209,China
文献出处：
引用格式：
[1]Zhonghao Dongye;Lei Qi;Bing Ji;Xiaoguang Wei;Xiang Cui-.Circuit Model with Current Interruption for Hybrid High Voltage DC Circuit Breakers to Achieve Precise Current Experiments)[J].中国电机工程学会电力与能源系统学报（英文版）,2022(04):1250-1260
A类：
Breakers
B类：
Circuit,Model,Current,Interruption,Hybrid,High,Voltage,Achieve,Precise,Experiments,current,interruption,test,LC,resonance,circuit,hybrid,breakers,HVDC,CBs,widely,employed,characterize,capability,order,ensure,high,fidelity,replica,fault,application,this,paper,first,proposes,equivalent,model,where,not,only,parasitic,resistances,but,also,threshold,voltages,state,various,semiconductor,devices,are,considered,Moreover,analytical,formula,derived,by,including,working,principle,Secondly,parameter,extraction,method,which,combines,finite,element,analysis,measurements,impedance,analyzer,given,extracted,implies,that,transients,kV,large,have,significant,influence,waveforms,Thirdly,kA,conducted,measured,results,proved,be,consistent,obtained,from,proposed,relative,error,less,than
AB值：
0.58962
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
