Method for detecting a structural fault of an electric motor
US12372578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Nov 2, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for detecting a structural fault of an electric motor. The method includes: (i) acquiring a measurement signal of a physical parameter representative of the rotation of the electric motor, (ii) obtaining the high frequency component of the measurement signal, resulting in a corrected signal, (iii) applying a set of band-pass filters to the corrected signal resulting in a set of filtered corrected signals, (iv) determining a stator frequency and a rotor frequency, (v) computing a frequency signature vector, (vi) computing a temporal symptom vector from the frequency signature vector and the set of filtered corrected signals, and (vii) detecting a structural fault of the electric motor from the determined temporal symptom vector and from a classifier model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.