典型文献
Fault diagnosis algorithm for 3-phase passive rectifiers based on frequency-domain analysis for acceleration grid power supply in CFETR NBI system
文献摘要：
The acceleration grid power supply(AGPS)is a crucial part of the Negative-ion Neutral Beam Injection system in the China Fusion Engineering Test Reactor,which includes a 3-phase passive(diode)rectifier.To diagnose and localize faults in the rectifier,this paper proposes a frequency-domain analysis-based fault diagnosis algorithm for the rectifier in AGPS.First,time-domain expressions and spectral characteristics of the output voltage of the TPTL-NPC inverter-based power supply are analyzed.Then,frequency-domain analysis-based fault diagnosis and frequency-domain analysis-based sub-fault diagnosis algorithms are proposed to diagnose open circuit(OC)faults of diode(s),which benefit from the analysis of harmonics magnitude and phase-angle of the output voltage.Only a fundamental period is needed to diagnose and localize exact faults,and a strong Variable-duration Fault Detection Method is proposed to identify acceptable ripple from OC faults.Detailed simulations and experimental results demonstrate the effectiveness,quickness,and robustness of the proposed algorithms,and the diagnosis algorithms proposed in this article provide a significant method for the fault diagnosis of other rectifiers and converters.
文献关键词：
中图分类号：
作者姓名：
Bangyou ZHU;Shaoxiang MA;Hongqi ZHANG;Zhiheng LI;Ming ZHANG;Yuan PAN
作者机构：
International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China
文献出处：
引用格式：
[1]Bangyou ZHU;Shaoxiang MA;Hongqi ZHANG;Zhiheng LI;Ming ZHANG;Yuan PAN-.Fault diagnosis algorithm for 3-phase passive rectifiers based on frequency-domain analysis for acceleration grid power supply in CFETR NBI system)[J].等离子体科学和技术（英文版）,2022(12):33-47
A类：
rectifiers,TPTL,quickness
B类：
Fault,diagnosis,phase,passive,frequency,domain,analysis,acceleration,grid,power,supply,CFETR,NBI,system,AGPS,crucial,part,Negative,Neutral,Beam,Injection,China,Fusion,Engineering,Test,Reactor,which,includes,diode,To,diagnose,localize,faults,this,paper,proposes,First,expressions,spectral,characteristics,output,voltage,NPC,inverter,are,analyzed,Then,sub,algorithms,proposed,open,circuit,OC,benefit,from,harmonics,magnitude,angle,Only,fundamental,period,needed,exact,strong,Variable,duration,Detection,Method,identify,acceptable,ripple,Detailed,simulations,experimental,results,demonstrate,effectiveness,robustness,article,provide,significant,method,other,converters
AB值：
0.493144
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