Demagnetization diagnosis in permanent magnet synchronous motors under non-stationary speed conditions

Permanent magnet synchronous motors (PMSMs) are applied in high performance positioning and variable speed applications because of their enhanced features with respect to other AC motor types. Fault detection and diagnosis of electrical motors for critical applications is an active field of research...

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Bibliographic Details
Published in:Electric power systems research 2010-10, Vol.80 (10), p.1277-1285
Main Authors: Ruiz, Jordi-Roger Riba, Garcia Espinosa, Antonio, Romeral, Luís, Cusidó, Jordi
Format: Article
Language:English
Subjects:
A.c. Machines
Applied sciences
Electric motors, Synchronous
Electrical engineering. Electrical power engineering
Electrical machines
Enginyeria mecànica
Exact sciences and technology
Fault detection
Fault diagnosis
Hilbert Huang
Miscellaneous
Motors
Motors hidràulics
Motors sicrònics
PMSM
Testing. Reliability. Quality control
Time–frequency transforms
Àrees temàtiques de la UPC
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Summary:Permanent magnet synchronous motors (PMSMs) are applied in high performance positioning and variable speed applications because of their enhanced features with respect to other AC motor types. Fault detection and diagnosis of electrical motors for critical applications is an active field of research. However, much research remains to be done in the field of PMSM demagnetization faults, especially when running under non-stationary conditions. This paper presents a time–frequency method specifically focused to detect and diagnose demagnetization faults in PMSMs running under non-stationary speed conditions, based on the Hilbert Huang transform. The effectiveness of the proposed method is proven by means of experimental results.
ISSN:0378-7796
1873-2046
DOI:10.1016/j.epsr.2010.04.010