System and method for synchronous machine health monitoring
US8803461B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/343
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method, system and computer program product for monitoring health of a synchronous machine is provided. The method includes receiving a plurality of phase voltage values and a plurality of phase current values. The method then computes a negative sequence voltage (Vn) based on the plurality of phase voltage values. The method also computes one or more operating parameters based on at least one of the plurality of phase voltage values and the plurality of phase current values. The method retrieves from a data store, one or more known Vn based on the one or more operating parameters. The method then computes a machine health indicator based on the computed Vn and the one or more known Vn, and raises an alarm based on the machine health indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.