Automatic voltage regulation for photovoltaic systems
US8922062B2 · kind B2 · utility
26Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A photovoltaic system includes solar cells and photovoltaic inverters configured to convert direct current generated by the solar cells to alternating current. Grid voltage at the point of interconnection (POI) of the photovoltaic system and the power grid is measured and compared to a setpoint. A control signal is generated based on the measured grid voltage. The control signal is provided to the photovoltaic inverters. The control signal is adjusted to cause the photovoltaic inverters to generate or absorb reactive power to respond to transient grid voltage changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.