Fault Detection by Means of Hilbert-Huang Transform of the Stator Current in a PMSM With Demagnetization

被引：184

作者：

Garcia Espinosa, Antonio ^{[1
]}

Rosero, Javier A. ^{[1
]}

Cusido, Jordi ^{[1
]}

Romeral, Luis ^{[1
]}

Antonio Ortega, Juan ^{[1
]}

机构：

[1] Univ Politecn Cataluna, Mot Control & Ind Applicat Grp, Terrassa 08222, Spain

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2010年 / 25卷 / 02期

关键词：

Demagnetization; empirical-mode decomposition (EMD); fault diagnosis; finite-element analysis (FEA); Hilbert-Huang transform (HHT); permanent-magnet synchronous motor (PMSM); EMPIRICAL MODE DECOMPOSITION; DIAGNOSIS; MOTORS;

D O I：

10.1109/TEC.2009.2037922

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a novel method to diagnose demagnetization in permanent-magnet synchronousmotor (PMSM). Simulations have been performed by 2-D finite-element analysis in order to determine the current spectrum and the magnetic flux distribution due to this failure. The diagnostic just based on motor current signature analysis can be confused by eccentricity failure because the harmonic content is the same. Moreover, it can only be applied under stationary conditions. In order to overcome these drawbacks, a novel method is used based upon the Hilbert-Huang transform. It represents time-dependent series in a 2-D time-frequency domain by extracting instantaneous frequency components through an empirical-mode decomposition process. This tool is applied by running the motor under nonstationary conditions of velocity. The experimental results show the reliability and feasibility of the methodology in order to diagnose the demagnetization of a PMSM.

引用

页码：312 / 318

页数：7

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