A fuzzy-based approach for open-transistor fault diagnosis in voltage-source inverter induction motor drives

被引：5
|
作者：
Zhang, Jianghan [1 ]
Luo, Hui [1 ]
Zhao, Jin [1 ]
Wu, Feng [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Hubei, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2015年 / 69卷 / 02期
关键词：
SWITCH FAULTS; PWM INVERTER; LOCATION; SCHEME;
D O I：
10.1051/epjap/2015140066
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This paper develops a novel method for the detection and isolation of open-transistor faults in voltage-source inverters feeding induction motors. Based on analyzing the load currents trajectories after Concordia transformation, six diagnostic signals each of which indicates a certain switch are extracted and a fuzzy rule base is designed to perform fuzzy reasoning in order to detect and isolate 21 fault modes including single- and double-transistor faults. In addition, the fuzzy rules are rearranged and each of them is set to a reasonable value representing the fault modes. The simulation and experiment are carried out to demonstrate the effectiveness of the proposed fuzzy approach.
引用
收藏
页数：10
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