Inverter system with reactive power support and control method thereof
US12160107B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2024 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | May 16, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter system includes an inverter bridge, an inductor and a controller. The inverter bridge includes first, second, third and fourth power switches. The inductor is connected between the inverter bridge and a power grid. The controller is configured to control both the second power switch and the third power switch to be turned on or both the first power switch and the fourth power switch to be turned on within a first time period of each power frequency cycle. The first time period is from a moment when a current of the power grid becomes zero to a moment when a voltage of the power grid becomes zero. The current of the power grid is in inverse phase with the voltage of the power grid in the first time period, so that reactive power is stored in the inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.