Title :
Calculation of transverse voltages of communication lines induced by the fault current of power system
Author :
Jun, Zou ; Hongbo, Chen ; Jiansheng, Yuan ; Jinliang, He ; Rong, Zeng ; Yanqing, Gao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
A double-line model is presented to calculate the transverse voltage of communication lines induced by the fault current of power lines. By dividing the communication line into several fictitious segments, a chain composed by the coupling P1-type circuit with distributed source is formed. The enhanced node voltage analysis (ENVA) is also developed in order to evaluate such a kind of model. The ENVA cuts the number of nodes down greatly because of treating the active and coupling impedance branches as a whole. In addition, the transverse voltages in time domain can be obtained easily from those calculated in frequency domain by means of fast Fourier transform. The numerical examples prove the validity and efficiency of the method by comparison with analytical results. The model is of significance to the design and the rights-of-way selection of power lines and communication lines.
Keywords :
electromagnetic induction; fast Fourier transforms; fault currents; power overhead lines; power system faults; telecommunication transmission lines; time-domain analysis; P1-type circuit; active impedance branches; communication line; communication lines; coupling impedance branches; distributed source; double-line model; enhanced node voltage analysis; fast Fourier transform; fault current; induced transverse voltages; inductive coupling; power lines; power system; rights-of-way; time domain; Coupling circuits; Fault currents; Frequency domain analysis; Helium; Impedance; Interference; Power system faults; Power system modeling; Transmission line theory; Voltage;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047617
