Electrodynamics Simulation of Overhead Power Lines

Electrical overhead power lines are important installations today. They are the main part of electric transmission and distribution systems that are vital to developed societies. A key factor for proper operation is correct clearance between conducting parts and earthed parts. These separations can be altered by the movement in the conductors caused by various phenomena and this can lead to faults and subsequent supply outages. Furthermore, these situations can increase mechanical stress on conductors and cause breakages or structural faults in supports. In this paper, a multiphysic model is presented which includes three types of phenomena together: 1) electromagnetic; 2) thermal; and 3) mechanical. This model is used to study conductor movement and mechanical stress and takes the different types of stationary and transitory disturbances into consideration.

[1]  J. Mitchell,et al.  Temperature Distributions Around Buried Cables , 1979, IEEE Transactions on Power Apparatus and Systems.

[2]  Jean-Louis Lilien,et al.  Overhead electrical transmission line galloping. A full multi-span 3-DOF model, some applications and design recommendations , 1998 .

[3]  M. Landry,et al.  De-icing EHV overhead transmission lines using electromagnetic forces generated by moderate short-circuit currents , 2000, 2000 IEEE ESMO - 2000 IEEE 9th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings. ESMO 2000 Proceedings. Global ESMO 2000. The Pow.

[4]  A. Miri,et al.  Calculated Short-Circuit Behaviour and Effects of a Duplex Conductor Bus Variation of the Subconductor Spacing , 2002 .

[5]  M. J. Ma theson,et al.  Simulation of the dynamic response of transmission lines in strong winds , 2002 .

[6]  D. J. Ward.  Overhead distribution conductor motion due to short-circuit forces , 2003 .

[7]  Friedrich Kiessling,et al.  Overhead Power Lines , 2003 .

[8]  Xiao-Bang Xu,et al.  Determination of maximum span length of utility lines based on consideration of eliminating magnetically induced subsequent fault , 2004 .

[9]  Hu Yi,et al.  Parameters for Wind Caused Overhead Transmission Line Swing and Fault , 2006, TENCON 2006 - 2006 IEEE Region 10 Conference.

[10]  Haiyan Yang,et al.  Magnetically induced swing movement of overhead power line conductors in a transition span subsequent to an initial fault , 2009 .