Fault detection by means of Hilbert Huang Transform of the stator current in a PMSM with demagnetization

Author

Rosero, J. ; Garcia, A. ; Cusido, J. ; Romeral, L. ; Ortega, J.A.

Author_Institution

Univ. Politecnica de Catalunya, Terrassa

fYear

2007

fDate

3-5 Oct. 2007

Firstpage

1

Lastpage

6

Abstract

This paper presents a study of the permanent magnet synchronous motor (PMSM) running under demagnetization. The simulation has been carried out by means of two dimensional (2-D) finite element analysis (FEA), and simulations results were compared with experimental results. The demagnetization fault is analyzed by means of decomposition of stator currents obtained at different speeds. The Hilbert Huang transform (HHT) is used as processing tool. This transformation represents time-dependent series in a two-dimensional (2-D) time-frequency domain by extracting instantaneous frequency components within the signal through an Empirical Mode Decomposition (EMD) process.

Keywords

Hilbert transforms; demagnetisation; fault diagnosis; finite element analysis; permanent magnet motors; synchronous motors; time-frequency analysis; Hilbert Huang transform; PMSM; demagnetization; empirical mode decomposition process; fault detection; finite element analysis; permanent magnet synchronous motor; stator current; time-frequency domain analysis; Analytical models; Demagnetization; Fault detection; Finite element methods; Magnetic analysis; Permanent magnet motors; Signal processing; Stators; Time frequency analysis; Two dimensional displays; Drive; FEA; Hilbert Huang transform; PMSM; current; demagnetization; empirical mode decomposition; fault; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing, 2007. WISP 2007. IEEE International Symposium on

Conference_Location

Alcala de Henares

Print_ISBN

978-1-4244-0830-6

Electronic_ISBN

978-1-4244-0830-6

Type

conf

DOI

10.1109/WISP.2007.4447631

Filename

4447631