Motor malfunction monitoring device, drive motor system and motor malfunction monitoring method
US11662384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Mar 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a motor malfunction monitoring device, and a drive motor for oilfield operations including: a signal acquisition module configured to acquire operation data of the drive motor, wherein the signal acquisition module comprises a vibration signal acquisition unit and/or an electrical signal acquisition unit, the vibration signal acquisition unit comprises one or more vibration sensors mounted at a component to be detected of the drive motor during use and provided for detecting transverse vibration and/or longitudinal vibration, and/or the electrical signal acquisition unit comprises a voltage sensor and a current sensor for detecting a voltage and a current of the drive motor, respectively; a data storage module storing therein a database of normal operation spectrums created when the drive motor runs normally; and a signal analysis module configured to extract an acquired operation data spectrum of the operation data acquired, compare the acquired operation data spectrum with a respective normal operation data spectrum in the database of normal operation spectrums to obtain a similarity, and determine that the drive motor fails when the similarity i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.