Dynamic modeling and vibration control of high-voltage overhead transmission lines

The problem of the dynamic behavior of overhead power transmission lines under wind and other excitations is an important one, since it allows an optimal design and positioning of vibration dampers for the cables. Excessive sway and oscillation of power lines need to be avoided, as they can lead to damage of the lines and power interruptions. The relatively high flexibility of the cables, coupled with the large spans and large sags involved, make the dynamic response of the system highly nonlinear. In this study, we numerically investigate the damped free-vibration response of systems of cables of particularly large spans (120, 200 and 400m).

Grantor dc:publisher.institution

Department of Civil Engineering

Year dc:date.issued

2008

Author dc:creator

• Mtanga, Jameson Joseph

Advisor dc:contributor.advisor

• Zingoni, Alphose

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/5022

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/5022