Regulation control for variable frequency generators
US8134344B2 · kind B2 · utility
2Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2101/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A variable frequency generator regulation control circuit and method for controlling open loop gain under changing generator speed conditions employing a high frequency pulse-width modulated signal with a duty cycle that is controlled such that variations in rectified PMG voltage and generator gain over the generator speed range can be compensated for. This signal is modulated by a low frequency pulse-width modulated signal provided by the generator regulator, using a logic gate to produce a combined signal representing an average voltage signal applied to a generator field winding as the generator speed fluctuates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.