Monitoring wide area dynamic swing recordings on an electrical power system
US6545482B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Sep 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/2513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A monitoring system for an electrical power transmission network or grid provides a recording network that can capture data on the response of the electrical power system over a wide geographical area to de-stabilizing electrical events. The captured data is obtained from multiple recording locations provided by individual recording units storing data on voltage and current on respective power transmission lines of the network. When an event is detected by one of the units, the central station interrogates the other units to obtain data based upon the same time as determined by a GPS clock at each unit and is thus automatically time-synchronized so that an overall coordinated snapshot of the power system dynamics is achieved. The wide-area capture is achieved through standard non-dedicated Internet, Intranet, and/or switched telephone network communication links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.