DocumentCode :
1165756
Title :
Wave Propagation on Nonuniform Lines
Author :
Menemenlis, Christos ; Chun, Zhu Tong
Author_Institution :
Institut de Recherche d´´Hydro-Quebec
Issue :
4
fYear :
1982
fDate :
4/1/1982 12:00:00 AM
Firstpage :
833
Lastpage :
839
Abstract :
The conventional traveling-wave technique is extended to nonuniform lines by attributing distributed reflection and refraction coefficients to each point on the line. Analytical expressions are derived giving the variations in voltage and current wave fronts as they travel along a nonuniform line as well as variations in the voltage and current and their respective ratio Z(t) = E/I at a fixed position of the line caused by the continuous generation of reflections along the line. It is shown that the ratio Z(t), representing the so-called transient surge impedance of a given position of a nonuniform line, depends not only on time and the function expressing the conventional surge impedance of the line but also on the shape of the current wave, a fact which considerably reduces the usefulness of Z(t) in solving nonuniform line problems.
Keywords :
Electromagnetic reflection; Electromagnetic refraction; Impedance; Lightning; Optical reflection; Poles and towers; Shape; Stress; Surges; Voltage control;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/TPAS.1982.317148
Filename :
4111401
Link To Document :
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