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Demagnetization Fault Diagnosis of a PMSM Based on Structure Analysis of Motor Inductance SCIE SCOPUS

Title
Demagnetization Fault Diagnosis of a PMSM Based on Structure Analysis of Motor Inductance
Authors
Moon, SLee, JJeong, HKim, SW
Date Issued
2016-06
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
A demagnetization fault in a permanent-magnet synchronous machine (PMSM) degrades performance and energy efficiency. The demagnetization fault causes flux-density difference and changes the PMSM inductances. Such varying parameters make it difficult to detect and diagnose the exact severity of a demagnetization fault. In this paper, we suggest a use of structural analysis of the PMSMs to diagnose the demagnetization fault. We can calculate varying inductances and consider the magnetic saturation effect with varying flux linkages of the machine. Combination of the proposed technique with the least-square (LS) method shows better results than the conventional methods in the estimation of flux linkages in the PMSMs with the demagnetization fault. Experimental results demonstrate that the proposed method works well both in the tracking of varying inductances and the diagnosis of the demagnetization fault.
URI
https://oasis.postech.ac.kr/handle/2014.oak/37298
DOI
10.1109/TIE.2016.2530046
ISSN
0278-0046
Article Type
Article
Citation
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 63, no. 6, page. 3795 - 3803, 2016-06
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김상우KIM, SANG WOO
Dept of Electrical Enginrg
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