Photovoltaic rapid shutdown system and control method therefor
US12237683B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Mar 3, 2022 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Mar 19, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rapid shutdown system and a method for controlling the rapid shutdown system are provided. A disturbance is applied to a direct-current side of an inverter in the rapid shutdown system only when the inverter does not meet a starting condition, i.e., before the inverter starts. Once meeting the starting condition, the inverter normally operates. A shutdown device in the rapid shutdown system determines its state by determining whether the electrical signal at its output end meets the preset condition, and switches itself on or off in response to its determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.