Title:
回転電機及びその診断方法
Document Type and Number:
Japanese Patent JP6994350
Kind Code:
B2
Abstract:
A rotating electrical machine of the present invention evaluates a relative displacement of members and improves reliability further even when two or more members operate or move. A rotating electrical machine of the present invention comprises a stator and a rotor disposed on an inner side of the stator with a predetermined gap. The stator includes vibration measuring devices, each of the vibration measuring devices placed on each of at least two members included in the stator, the members having different displacements or phases with each other. The rotating electrical machine includes a device that acquires a relative displacement of one of the members included in the stator by evaluating a difference between displacements or phases measured by the vibration measuring devices and that evaluates a lifetime of the one of the members included in the stator based on the relative displacement.
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Inventors:
Yuichi Sekine
Keiji Suzuki
Kei Kumano
Kurihara Ami
Yuichi Takahashi
Keiji Suzuki
Kei Kumano
Kurihara Ami
Yuichi Takahashi
Application Number:
JP2017206955A
Publication Date:
January 14, 2022
Filing Date:
October 26, 2017
Export Citation:
Assignee:
Mitsubishi Power, Ltd.
International Classes:
G01R31/34; H02K11/20
Domestic Patent References:
| JP2011107123A | ||||
| JP2017153344A | ||||
| JP59061449A | ||||
| JP59045092B2 | ||||
| JP2000245096A | ||||
| JP2010256352A |
Foreign References:
| WO2007058196A1 | ||||
| EP3220120A1 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation