A Diagnostic Method for IGBTs Open-circuit Faults in NPC Inverter

被引：0

作者：

Chu, Min ^{[1
]}

Zhao, Jin ^{[1
]}

Song, YuJin ^{[1
]}

Wu, ZhiXi ^{[1
]}

Ding, XinZhong ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Artificial Intelligence & Automat, Wuhan 430074, Hubei, Peoples R China

[2] Shanghai Step Robot Co Ltd, Shanghai 201801, Peoples R China

来源：

2022 41ST CHINESE CONTROL CONFERENCE (CCC) | 2022年

关键词：

NPC Inverter; Open-circuit Faults; Signal-driven and Data-driven; Fault Diagnosis; Open-loop v/f Control; RECTIFIERS; ALGORITHM;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes an integration fault diagnosis approach of signal-driven method and data-driven method for three-level inverter feeding induction motor under open-loop v/f control. The current paths are analyzed under the normal case and open-circuit fault cases in the IGBTs. A method combining signal-driven and data-driven is proposed. The average values of the positive and negative currents and the ratios are used to be the input features of a two-layer feedforward neural network. Experiments are carried out at different speed and load conditions, which verify the effectiveness of the proposed method.

引用

页码：3972 / 3977

页数：6

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