Method and device for reducing the vibrations of rotating machines equipped with an active magnetic suspension
US4626754A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1985 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Mar 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/09
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for reducing the vibrations of a rotating machine equipped with an active magnetic suspension comprises at least two vibration detectors located on the machine frame for detecting disturbances applied to the frame, and at least an additional selection feedback loop with narrow band and high gain whose central frequency is synchronized with a reference frequency and which receives signals delivered by the vibration detectors. The additional selective feedback loop comprises means for integrating the signals delivered by the vibration detectors and filtering means for eliminating the transient signals whose frequency is not linked to the reference frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.