Comparison of the Fault Characteristics of IPM-Type and SPM-Type BLDC Motors Under Inter-Turn Fault Conditions Using Winding Function Theory

In this paper, the characteristics of brushless dc (BLDC) motors were compared and analyzed according to the types and control methods under the inter-turn fault (ITF) condition. The shorted windings produced by the ITF were modeled by the winding function theory (WFT) based on the distributed const...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2014-03, Vol.50 (2), p.986-994
Main Authors: Kim, Kyung-Tae, Park, Jun-Kyu, Hur, Jin, Kim, Byeong-Woo
Format: Article
Language:English
Subjects:
Brushless dc (BLDC) machines
Circuit faults
Commutation
comparison faults
Finite element analysis
Inductance
inter-turn fault (ITF)
interior permanent-magnet (IPM) motors
Motors
permanent-magnet (PM) machines
phase advanced angle control
Reluctance motors
surface permanent-magnet (SPM) motors
Torque
Traction motors
winding function theory (WFT)
Windings
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Summary:In this paper, the characteristics of brushless dc (BLDC) motors were compared and analyzed according to the types and control methods under the inter-turn fault (ITF) condition. The shorted windings produced by the ITF were modeled by the winding function theory (WFT) based on the distributed constant circuit method. We also introduced the inductance calculated by the WFT to the voltage equation and analyzed the effect of the ITF using the characteristics of the input and output parameters. The increase rate of torque ripple, increase rate of input current, and the circulating current of the surface permanent-magnet (PM) and interior PM motors under healthy and ITF conditions were compared to determine which motor type is more efficient in preventing the ITF. We also analyzed the fault characteristics by applying the advanced angle control. In this paper, the analysis results are validated by the finite-element method and experiments.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2013.2272911