Bridge-type circuit, and direct current breaking device and control method thereof
US10454265B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 17, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/544
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bridge-type circuit comprises a H-bridge switch module and a buffering and reclosing module. The H-bridge switch module comprises four power semiconductor switch devices. Every two of the four power semiconductor switch devices are connected in series in the same direction to form a bridge arm, and the two bridge arms are further connected in parallel. Middle points of the two bridge arms respectively serve as an input terminal and an output terminal. The buffering and reclosing module is connected in parallel with the two bridge arms of the full bridge module. Also provided are a direct current breaking device formed by connecting the above bridge-type circuits in cascade and a control method thereof. The direct current breaking device is provided with the buffering and reclosing module, such that line voltage fluctuation generated during a reclosing operation is small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.