AC exciter for VSCF starter/generator
US5097195A · kind A · utility
63Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N11/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The problem of providing field power to a stationary main generator field winding (22) is addressed such that it can be used as a motor. A dynamoelectric machine (12) is operated as both a generator and a motor. An AC-AC exciter (14) is controlled by an exciter inverter (42) to operate as an exciter generator in a generate mode, and as a rotary transformer in a start mode. The exciter inverter (42) supplies low frequency power to an exciter field winding (28) in a generate mode of operation, and supplies high frequency AC power to the generator field winding (28) in the start mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.