Modular thyristor-based rectifier circuits
US9614457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/25
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Power conversion apparatus for controllably converting alternating current (AC) to direct current (DC). An example apparatus includes multiple AC sources, galvanically isolated from one another, and multiple bridge rectifier circuits, including one or more controllable bridge rectifier circuits, where each bridge rectifier circuit has respective AC-side terminals and DC-side terminals and each bridge rectifier circuit is connected to a corresponding one of the AC sources via its AC-side terminals. The DC-side terminals are connected so that the outputs of the bridge rectifier circuits are combined in series. A control circuit is configured to individually control each controllable bridge rectifier circuit to selectively operate in a regulator mode, whereby a non-zero voltage less than or equal to the maximum rectifier voltage is provided, and a bypass mode, whereby the controllable bridge rectifier circuit provides a negligible voltage to its DC-side terminals and draws negligible current from its corresponding AC source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.