Circuit for component voltage limitation, and apparatus for applying the same
US11264804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | May 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for component voltage limitation and an apparatus for applying the same. A detection-and-control unit detects a parameter of a photovoltaic-cell string, and controls operation of a switch unit according to the parameter. In a case that the switch unit controls at least one photovoltaic cell connected to the switch unit to operate in a voltage-limited mode according to control of the detection-and-control unit, a voltage of the photovoltaic-cell string can be reduced. In a case that that the switch unit controls a photovoltaic cell operating in a voltage-limited mode to resume a normal output according to control of the detection-and-control unit, an output voltage of the photovoltaic-cell string can be increased. The rate of utilization on the direct voltage and the PVIR of DC/AC are improved for the photovoltaic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.