Online estimation of POI-level aggregated inertia considering frequency spatial correlation
US11777321B1 · kind B1 · utility
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Key dates
| Filing date | Mar 2, 2023 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Mar 2, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2300/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An exemplary two-step method for power system inertia online estimation is described. The first step is to accurately estimate the POI-level aggregated inertia. The second step is to calculate the system-level inertia constant by weighting all the POI-level aggregated inertia and to monitor the inertia spatial distribution. In one example embodiment, the PMU is installed at POI, the frequency spatial difference is considered, and the mechanical power is carefully treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.