Title :
Transient analysis of aerial multi-conductor transmission lines with branch
Author :
Lu, Tiebing ; Cui, Xiang ; Li, Lin
Author_Institution :
Dept. of Electr. Eng., North China Electr. Power Univ., Hebei, China
fDate :
9/1/2001 12:00:00 AM
Abstract :
In order to analyze the switching transient electromagnetic field generated by the aerial busbars in a substation, the transient wave process of the lossy aerial multi-conductor transmission lines (MTLS) with branch is calculated by using the finite- difference time-domain (FDTD) method. Based on the Pade approximation and on Prony´s method, the iterative equations of the lossy aerial MTLs with branch are presented in this paper. An aerial busbar model in a 500 kV substation is analyzed when circuit breakers and disconnect switches are closed. The results can be used to research the immunity of the control devices in the substation
Keywords :
busbars; circuit breakers; electromagnetic fields; finite difference time-domain analysis; iterative methods; multiconductor transmission lines; switching substations; transient analysis; 500 kV; Pade approximation; Prony´s method; aerial busbars; aerial multi-conductor transmission lines; circuit breaker; disconnect switches; finite-difference time-domain method; iterative equations; substation; switching transient electromagnetic field; transient wave process; Electromagnetic analysis; Electromagnetic fields; Electromagnetic transients; Finite difference methods; Multiconductor transmission lines; Power system transients; Propagation losses; Substations; Time domain analysis; Transient analysis;
Journal_Title :
Magnetics, IEEE Transactions on
