Composite fault diagnosis method of EMU traction motor speed sensor considering harmonic interference

被引：1

作者：

Li, Yanshu ^{[1
,2
]}

Li, Hua ^{[3
]}

Fei, Jiyou ^{[3
]}

Lu, Chang ^{[3
,4
]}

Ma, Jie ^{[3
]}

机构：

[1] Dalian Jiaotong Univ, Coll Locomot & Rolling Stock Engn, 116028, Datong 037009, Peoples R China

[2] Shanxi Datong Univ, Coll Mech & Elect Engn, Datong 037009, Peoples R China

[3] Dalian Jiaotong Univ, Coll Locomot & Rolling Stock Engn, Dalian 116028, Peoples R China

[4] PLA Army Acad Artillery & Air Def, Sch Warrant Officer, Shenyang 110000, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAVY VEHICLE SYSTEMS | 2022年 / 29卷 / 04期

关键词：

harmonic interference; EMU; traction system; motor speed; speed sensor; D-S evidence theory;

D O I：

10.1504/IJHVS.2022.127812

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In order to improve the accuracy of the fault diagnosis of the motor speed sensor and reduce the time-consuming, this paper proposes a composite fault diagnosis method for the traction motor speed sensor of the electric multiple unit (EMU) considering harmonic interference. This paper takes the traction system of the CRH2 EMU as the research object, calculates the multi-dimensional fuzzy harmonic closeness of the speed sensor fault signal and the normal signal, and extracts the harmonic interference characteristics. Experimental results show that the diagnostic accuracy of the proposed method is high, the time-consuming is stable below 150 ms, and the packet loss rate is stable at about 2%, which is significantly better than other comparative systems. The reliability of the proposed method is verified.

引用

页码：424 / 439

页数：17

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