Systems and methods for regulating power in renewable energy sources
US8427118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Dec 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Certain embodiments of the invention may include systems and methods for regulating power in renewable energy sources. According to an exemplary embodiment of the invention, a method is provided for regulating active power produced by the renewable energy source towards an apparent power setpoint. The method may include selectively regulating voltage based on power factor foldback or voltage foldback associated with the renewable energy source. When power factor foldback is selected, the method may include regulating the power factor associated with the renewable energy source based at least in part on a power factor angle magnitude setpoint, and reducing the power factor angle magnitude setpoint towards zero when apparent power produced by the renewable energy source approaches or exceeds the apparent power setpoint. When voltage foldback is selected, the method may include regulating voltage of the renewable energy source based at least in part on measured VARs and an apparent power ratio, where the apparent power ratio is about equal to the apparent power divided by the apparent power setpoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.