|本期目录/Table of Contents|

[1]曹旭东,李支园.单元串联变频器 IGBT 故障诊断方法[J].电机与控制学报,2016,20(12):9-16.[doi:10. 15938 /j. emc. 2016. 12. 002]
 CAO Xu-dong,LI Zhi-yuan.Transistor fault diagnosis method in cascade multilevel inverter [J].,2016,20(12):9-16.[doi:10. 15938 /j. emc. 2016. 12. 002]
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单元串联变频器 IGBT 故障诊断方法(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年12
页码:
9-16
栏目:
出版日期:
2016-12-01

文章信息/Info

Title:
Transistor fault diagnosis method in cascade multilevel inverter
作者:
曹旭东 李支园
 ( 中国石油大学 地球物理与信息工程学院,北京 102249)

Author(s):
CAO Xu-dong LI Zhi-yuan
( College of Geophysics and Information Engineering,China University of Petroleum,Beijing102249,China)
关键词:
多电平变频器 单元串联 绝缘栅双极型晶体管 故障诊断 镜像电流法
Keywords:
multilevel inverter cell series IGBT fault diagnosis mirror current method
分类号:
TM 464
DOI:
10. 15938 /j. emc. 2016. 12. 002
文献标志码:
A
摘要:
针对单元串联多电平高压变频器的 IGBT( 绝缘栅双极型晶体管) 故障检测问题,基于镜像电流源原理,搭建通过功率单元直流母线电压控制的逆变桥臂输出电压逻辑检测电路,并给出功率单元输出逻辑与驱动信号逻辑的关系,通过动态判别逻辑关系的正确性,诊断出 IGBT 的故障状态。实验结果表明,该方法诊断迅速,能够在 10 μs 以内正确检测出功率管的故障状态,相比基于各种算法的故障诊断方法,该方法可靠实用,对单元串联型多电平高压变频器的故障诊断具有工程应用价值。

Abstract:
 As for the problem of fault diagnosis of the IGBT( insulated gate bipolar transistor) for cascade multilevel inverter,a detection method is designed. It detected logic state of the output of inverter’s bridge arm based on the principle of the mirror current method. The DC bus voltage of power module controlled the detection circuit. Then,the logical relationship between the output and drive signal of power module was analysed. The fault state of IGBT was detected though judging this relationship. The experiment results show that the detection method can diagnose IGBT’s fault state rapidly within 10 μs. It is more reliable and practical than the diagnosis methods based on software algorithm,which is valuable in engineering ap-plication for the cascade multilevel inverter.

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备注/Memo

备注/Memo:
收稿日期: 2016 - 09 - 01
基金项目: 国家发改委应用示范项目( CNGI - 12 - 03 - 043)
作者简介: 曹旭东( 1968—) ,男,硕士,副教授,研究方向为电力电子故障诊断、信号检测与处理;
李支园( 1987—) ,男,硕士,研究方向为信号检测与处理。
更新日期/Last Update: 2017-02-27