| Project/Area Number |
21560297
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
MIZUNO Yukio 名古屋工業大学, 大学院・工学研究科, 教授 (50190658)
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| Research Collaborator |
NAKAMURA Hisahide 株式会社トーエネック, 技術開発室, 研究員
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 故障診断 / 誘導電動機 / 巻線短絡 / 電流 / 特徴量 / 確率密度関数 / 振幅 / 位相 / 特微量 |
|---|
| Research Abstract |
Probabilistic diagnosis method was developed to detect turnto-turn short-circuit fault of stator winding, which is one of the most probable faults in induction motors. It was confirmed that magnitude and phase were features characterizing current following into a winding, depending on winding conditions. Fault probability, defined as internal area of the ellipsoid, was derived theoretically based on feature distributions of healthy motors and features of a target motor to be diagnosed. Examination using motors with some kinds of turnto-turn shortcircuit faults proved that the method proposed is effective under both no-load and loaded conditions. Possible applications of the method are outgoing inspections by motor manufacturers and periodical/non-periodical inspection at site
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