System and method for detecting a grid event
US9671442B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 30, 2012 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Feb 6, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/76
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for detecting a grid event is provided. The method includes sampling grid voltage and grid current over a fixed period of time; determining grid impedance at one or more frequencies using the sampled grid voltage and the sampled grid current; comparing the grid impedance at the one or more frequencies to a known expected grid impedance at the one or more frequencies; and detecting a grid event based on the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.