Unwrapping angles from phasor measurement units
US8457912B1 · kind B1 · utility
15Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2013 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jan 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for monitoring a power grid uses power line sensors to measure time-stamped data representing AC current carried by the power grid at a multiple locations on the power grid, communicates the measured data from the power line sensors to a grid analysis device where the data measured by the power line sensors is synchronized and unwrapped to produce absolute phase data. The absolute phase data is then analyzed to generate predictions of instability of the power grid. The resulting unwrapped angle could also be called the “angle distance” from the reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.