Full thyristor bridge circuit with free wheeling diode for de-excitation control and stability sensing
US6442051B1 · kind B1 · utility
10Cited by
15References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Oct 31, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit is provided for use in a synchronous generator excitation system. The circuit comprises a three-phase bridge having six legs. The bridge is connected with an AC power supply. A thyristor is provided in each of the six legs, wherein the thyristors provide a path for a device current. A free wheeling diode functions as a de-excitation means connected in parallel with the three-phase bridge. The free wheeling diode provides a discharge path for a field current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.