Flat frequency, constant voltage power source device
US4965463A · kind A · utility
12Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J3/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat frequency, constant voltage power source device is provided for parallel operation of a plurality of electric generators. The generators include exciting windings of induction motors integral with the generators for connecting and disconnecting outputs of the generators. A starting sequence of the electric generators is based on a start signal provided externally and start preparation completion signals indicating completion of start preparation routines. The induction motors of the generators are thereby varied in frequency so that the generators can be synchronized in phase for their effective parallel operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.