Power-line sag calculation by way of power-system state estimation
US7494271B2 · kind B2 · utility
16Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2007 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Jun 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J3/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sag calculator (122) computes sag for a span of a section of a power line based at least in part upon a temperature of conductor lines in the line section. A temperature calculator (120) determines the temperature by computing a resistance ascertained through augmented state estimation techniques performed by a state estimator (118). A Supervisory Control and Data Acquisition (SCADA) system (104) acquires data used by the state estimator (118) to compute the resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.