Method and device for estimating source impedances across one or more transmission lines
US11742650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Sep 15, 2041 |
Classification
- Technology area (CPC —)General
Abstract
The present invention relates to estimating source impedances across one or more transmission lines connecting at least two substations. Each substation is associated with an equivalent source having a respective source impedance. Voltage and current measurements and status signals are obtained. The voltage and current measurements provide terminal or bus voltages and line currents at each terminal, and the status signals are associated with switching events at the one or more transmission lines or at the substations. An event associated with a disturbance or current injection is detected from one or more of the obtained measurements and the obtained status signals. The source impedance of each equivalent source is estimated based on the event, using line parameters and the voltage and current measurements associated with the event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.