Interturn Short Fault Diagnosis in a PMSM by Voltage and Current Residual Analysis With the Faulty Winding Model
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SCOPUS
- Title
- Interturn Short Fault Diagnosis in a PMSM by Voltage and Current Residual Analysis With the Faulty Winding Model
- Authors
- Moon, Seokbae; Jeong, Hyeyun; Lee, Hojin; Kim, Sang Woo
- Date Issued
- 2018-03
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Abstract
- As interturn short fault (ISF) in a permanent-magnet synchronous machine (PMSM) degrades its energy efficiency and may cause other problems, accurate fault diagnosis for the PMSMs is necessary. In this paper, we present a method that uses voltage and current residual components to diagnose the phase and the severity of the ISF in PMSMs. A faulty-winding model (FWM) is introduced to analyze the fault; the model describes a relationship between the voltage decrease of the faulty winding to the characteristics of the fault such as a fault resistance and a fault turn ratio. Based on the model, we suggest a fault index (FI) that shows the severity of the ISF. As the ISF induces residual components to both voltage and current, the proposed method utilized those components with the FWM. A least squares (LS) method is used to estimate the FI and to diagnose the ISF of PMSMs. Experimental results demonstrate that the proposed method diagnose the ISF effectively.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/94995
- DOI
- 10.1109/TEC.2017.2726142
- ISSN
- 0885-8969
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON ENERGY CONVERSION, vol. 33, no. 1, page. 190 - 198, 2018-03
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