Input responsive protection and frequency control of series connected converters
US12395088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter is provided. The power converter includes power units and local controller. Input terminals of the power units are connected to each other in series. Output terminals of the plurality of power units are connected to each other in parallel. The local controllers are electrically connected to the power units respectively. Each local controller controls an operation of switching devices in the corresponding power unit. Each local controller receives an input capacitor voltage on an input capacitor of the corresponding power unit, an input reference voltage and an output voltage of the power converter. In each power unit and the corresponding local controller, when an input difference between the input reference voltage and the input capacitor voltage is smaller than a first set value, the local controller controls a switching frequency of the switching devices in the corresponding power unit to jump to a preset frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.