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Volume 15
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10.3390/s151129452
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Article

Robust Diagnosis Method Based on Parameter Estimation for an Interturn Short-Circuit Fault in Multipole PMSM under High-Speed Operation

by
Jewon Lee
,
Seokbae Moon
,
Hyeyun Jeong
and
Sang Woo Kim
*
Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Room 304, LG Cooperative Electronics Engineering Building, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
*
Author to whom correspondence should be addressed.
Sensors 2015, 15(11), 29452-29466; https://doi.org/10.3390/s151129452
Submission received: 19 October 2015 / Revised: 16 November 2015 / Accepted: 17 November 2015 / Published: 20 November 2015
(This article belongs to the Section Physical Sensors)
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Abstract

This paper proposes a diagnosis method for a multipole permanent magnet synchronous motor (PMSM) under an interturn short circuit fault. Previous works in this area have suffered from the uncertainties of the PMSM parameters, which can lead to misdiagnosis. The proposed method estimates the q-axis inductance (Lq) of the faulty PMSM to solve this problem. The proposed method also estimates the faulty phase and the value of G, which serves as an index of the severity of the fault. The q-axis current is used to estimate the faulty phase, the values of G and Lq. For this reason, two open-loop observers and an optimization method based on a particle-swarm are implemented. The q-axis current of a healthy PMSM is estimated by the open-loop observer with the parameters of a healthy PMSM. The Lq estimation significantly compensates for the estimation errors in high-speed operation. The experimental results demonstrate that the proposed method can estimate the faulty phase, G, and Lq besides exhibiting robustness against parameter uncertainties.
Keywords: permanent magnet synchronous motor; interturn short; fault detection; diagnosis; fault index; parameter identification permanent magnet synchronous motor; interturn short; fault detection; diagnosis; fault index; parameter identification

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MDPI and ACS Style

Lee, J.; Moon, S.; Jeong, H.; Kim, S.W. Robust Diagnosis Method Based on Parameter Estimation for an Interturn Short-Circuit Fault in Multipole PMSM under High-Speed Operation. Sensors 2015, 15, 29452-29466. https://doi.org/10.3390/s151129452

AMA Style

Lee J, Moon S, Jeong H, Kim SW. Robust Diagnosis Method Based on Parameter Estimation for an Interturn Short-Circuit Fault in Multipole PMSM under High-Speed Operation. Sensors. 2015; 15(11):29452-29466. https://doi.org/10.3390/s151129452

Chicago/Turabian Style

Lee, Jewon, Seokbae Moon, Hyeyun Jeong, and Sang Woo Kim. 2015. "Robust Diagnosis Method Based on Parameter Estimation for an Interturn Short-Circuit Fault in Multipole PMSM under High-Speed Operation" Sensors 15, no. 11: 29452-29466. https://doi.org/10.3390/s151129452

APA Style

Lee, J., Moon, S., Jeong, H., & Kim, S. W. (2015). Robust Diagnosis Method Based on Parameter Estimation for an Interturn Short-Circuit Fault in Multipole PMSM under High-Speed Operation. Sensors, 15(11), 29452-29466. https://doi.org/10.3390/s151129452

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