Quasi-static calculation method for lateral unbalanced force of transmission lines
US11953398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2022 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Apr 30, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention belongs to the technical field of disaster prevention and reduction of transmission lines, and provides a quasi-static calculation method for lateral unbalanced force of transmission lines. The present invention can quantify significant unbalanced force caused by a failed tower to an adjacent tower, thus to quantitatively evaluate cascading failure risk of transmission lines. The present invention does not need a lot of iteration, and can parametrically reveal influence of various factors on unbalanced force. The present invention quantifies influence of large deformation effect of a conducting wire on wind load, and at the same time, wind load of the conducting wire is corrected by the trapezoidal equivalent wind pressure proposed, which avoids wind load calculation error of the conducting wire caused by a relatively large vertical height difference, better reflects actual mechanical state of the lines, and optimizes existing wind load calculation method of transmission lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.