Power optimizers in series with voltage sensors and a common reference signal
US11670945B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2022 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Oct 12, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A common reference signal is used by a plurality of serially-connected power optimizers to manage a plurality of photovoltaic panels. It is determined whether an individual voltage output exceeds an individual limit. If so, a corresponding photovoltaic panel in the plurality of photovoltaic panels is adjusted to reduce the individual voltage output and the combined voltage output, where the combined voltage output is based at least in part on (a) the individual voltage output and (2) at least one other individual voltage output associated with another power optimizer. It is determined whether the combined voltage output relative to the common reference signal exceeds a maximum offset. If so, the corresponding photovoltaic panel in the plurality of photovoltaic panels is adjusted to reduce the individual voltage output and the combined voltage output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.