Online Diagnosis of Short-Circuit Fault of Stator Winding of Motor Operating under Variable Load Conditions
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- Nakamura Hisahide
- Research and Development Division, TOENEC Corp.
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- Yagami Yusuke
- Nagoya Institute of Technology
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- Kishino Kosuke
- Nagoya Institute of Technology
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- Mizuno Yukio
- Nagoya Institute of Technology
Bibliographic Information
- Other Title
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- 負荷変動時における電動機固定子巻線短絡のオンライン診断
- フカ ヘンドウジ ニ オケル デンドウキ コテイシ マキセン タンラク ノ オンライン シンダン
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Abstract
Short-circuit faults in windings due to the deterioration of insulation are one of the most common faults in motor drive systems. An easy and effective fault diagnostic method is urgently required to ensure the highly reliable operation. This paper proposes a novel online diagnosis method for short-circuit faults in the stator winding inside a low-voltage induction motor running under variable load conditions. In this study, first, several motor operations are carried out under various load conditions, and the features that represent the characteristics corresponding to the condition of the motor winding are extracted. From this experiment, it is observed that these features are linearly distributed in three-dimensional space. Second, some straight lines approximating this feature distribution obtained from healthy motors are derived, and the distances between the straight lines and the features obtained from a target motor are calculated. Then, we introduce a fault probability that can be used to diagnose the condition of the winding. On the basis of this probability, the quality of the stator winding is determined. The effectiveness of the proposed diagnosis method is experimentally verified.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 134 (1), 90-95, 2014
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679634070656
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- NII Article ID
- 130003382852
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 025165469
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed