Method for monitoring an electric motor and detecting a departure from normal operation
US5675497A · kind A · utility
45Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/912
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting a departure from normal operation of an electric motor comprises the steps of modelling a set of normal current measurements and a set of operational current measurements for the motor being monitored. The modelling is carried out by a neural network auto-associator which is trained to reproduce its inputs on its output. A potential failure is indicated whenever the set of normal current measurements and the set of operational current measurements differ by more than a predetermined criterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.