Gate controlling apparatus for a thyristor valve
US4223236A · kind A · utility
6Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1978 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Jul 12, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thyristor valve includes a plurality of thyristors connected in series and series circuits each including a capacitor and a resistor and connected in parallel with each thyristor. A pulse from a pulse generator for firing the thyristors is applied to them at the beginning of a prescribed period of conduction of the thyristor valve when voltage across the selected one of the thyristors is forward. An output signal of a current detector provides a firing pulse to all thyristors when the valve current exceeds a predetermined current value during the prescribed period of conduction of the thyristor valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.