Method for determining position of forced power oscillation disturbance source in regional interconnected power grid
US9037425B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for determining a position of a forced power oscillation disturbance source in a regional interconnected power grid. According to the method, when forced power oscillation occurs in a regional power grid, an algebraic sum of energy flow directional factors in the regions of the regional interconnected power grid is calculated so as to online determine the position of the disturbance source in real-time. Compared with the conventional disturbance source positioning method based on an energy function, the disturbance source positioning method based on calculation of the energy flow directional factors provided by the invention can reduce the impact of a periodic disturbance component and an initial constant on the determination of an aperiodic component of branch potential energy, thus achieving higher accuracy. Moreover, the integration links are reduced and the calculation process is simplified, thus better meeting the requirements for real-time power grid calculation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.