[1]王志远,张杰,王雨琦,等.基于三相电流检测的逆变器开路故障诊断及容错方案研究[J].机车电传动,2014,(02):105-109.[doi:10.13890/j.issn.1000-128x.2014.02.026]
 WANG Zhi-yuan,ZHANG Jie,WANG Yu-qi,et al.Inverter Open-circuit Fault Diagnosis and Its Fault-tolerant Method Based on Three-phase Current Detection[J].Electric Drive for Locomotives,2014,(02):105-109.[doi:10.13890/j.issn.1000-128x.2014.02.026]
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基于三相电流检测的逆变器开路故障诊断及容错方案研究()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2014年02期
页码:
105-109
栏目:
城市轨道车辆
出版日期:
2014-03-10

文章信息/Info

Title:
Inverter Open-circuit Fault Diagnosis and Its Fault-tolerant Method Based on Three-phase Current Detection
文章编号:
1000-128X(2014)02-0105-05
作者:
王志远张杰王雨琦宋文胜葛兴来
西南交通大学
Author(s):
WANG Zhi-yuan ZHANG Jie WANG Yu-qi SONG Wen-sheng GE Xing-lai
(School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China)
关键词:
矢量控制逆变器故障诊断小波分析支持向量机容错四开关
Keywords:
vector-control inverter fault diagnosis wavelet SVM fault-tolerant four-switch
分类号:
TM464;U264.3+72
DOI:
10.13890/j.issn.1000-128x.2014.02.026
文献标志码:
A
摘要:
为解决逆变器开路故障诊断问题及充分利用剩余桥臂资源,针对基于矢量控制的异步电机驱动系统中逆变器开路故障诊断及容错方案,采用逆变器输出三相电流信号作为特征参数,利用小波分析理论提取特征向量,进而通过支持向量机(SVM)判断逆变器是否故障。当SVM检测到逆变器故障时,逆变器由传统的六开关拓扑切换为四开关拓扑,采用四开关模式“七段式”空间矢量脉宽调制(SVPWM)算法调制。通过计算机仿真验证了SVM诊断逆变器开路故障及四开关容错控制的正确性和有效性。
Abstract:
Inverter open-circuit fault diagnosis and fault-tolerant method based on vector-controlled induction machine drive system with utilization of remained bridges was proposed. Signals of inverter three-phase current were taken as characteristic parameter, and based on wavelet principle, eigenvectors were extracted, and then inverter failure was detected through the support vector machine (SVM). When inverter fault was detected by SVM, traditional six-switch topology was changed to newly four-switch topology with four-switch mode algorithm modulation of space vector pulse width modulation (SVPWM). Validity and effectiveness of the SVM for inventor open-circuit fault diagnosis and the control strategy for four-switch inverter was proved by simulation.

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备注/Memo

备注/Memo:
作者简介:王志远(1990-),男,硕士研究生,主要研究方向为电力牵引交流传动及其控制。
更新日期/Last Update: 2014-03-10