Zero droop voltage control for smart inverters
US9948100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Oct 21, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for controlling grid voltage include a distribution power network and one or more smart inverters at or near the edge of the distribution power network, each smart inverter configured to absorb or insert VARs to control the voltage based on a reference Q value, wherein the reference Q value is calculated by a reference Q calculator. A reference Q calculator includes a processor and a non-transitory computer readable memory with software embedded thereon, the software configured to cause the processor to receive a voltage measurement taken at or near the edge of a power distribution grid, a voltage band value, and a voltage set point value, determine a difference, ev, between the voltage measurement and the voltage set point, generate a new reference Q value if an absolute value of ev is greater than the voltage band value, and cause the smart inverter to either absorb or insert VARs depending on the sign of ev.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.