Control method, auxiliary power supply of photovoltaic inverter and photovoltaic power generation system
US11990758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application provides a control method, an auxiliary power supply of a photovoltaic inverter, and a photovoltaic power generation system. The auxiliary power supply includes a rectifier circuit and a conversion circuit with at least one output terminal. The conversion circuit includes a voltage determining unit and a power determining unit. The conversion circuit is coupled to an output terminal of the rectifier circuit, and is configured to convert direct current power into at least one auxiliary voltage. The power determining unit and the voltage determining unit are coupled to an input terminal of the inverter circuit or an input terminal of the photovoltaic inverter, which are configured to obtain output power and an output voltage of the solar panel, respectively. When the output voltage is greater than the start-up voltage and the output power is greater than the start-up power, the auxiliary power supply starts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.