Parameter symmetry analysis of four circuit transmission lines on the same tower

• Published in: 2021 International Conference on Intelligent Computing, Automation and Systems (ICICAS) pp. 140 - 145
• Main Authors: Cui, Tang, Leiming, Song, Junfeng, Chen, Qi, Xu, Jiaqing, Fan, Chaofan, Zhang
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-12-2021
• Subjects: Analytical models; Conductors; four circuits in the same tower; Lightning; line length; parameter symmetry; phase to phase distance; Poles and towers; Power transmission lines; PSCAD; Transmission line measurements; Wires
• DOI: 10.1109/ICICAS53977.2021.00034

Taking the parameter symmetry of four circuit transmission lines on the same tower as the core, this paper intends to carry out research work from the aspects of parameter calculation method and parameter symmetry of four circuit transmission lines on the same tower.Firstly, the calculation method of the original parameters of the transmission line and the unbalance degree of the transmission line are introduced, and then the action law of a large number of factors on the parameter symmetry of the four circuit transmission line on the same tower is studied by using PSCAD simulation software. Finally, it is concluded that the phase sequence arrangement of the transmission line, the number of lightning conductors, phase to phase distance and other factors will affect it,It also puts forward measures to improve the parameter symmetry of multi circuit transmission lines on the same tower, so as to improve the power quality and provide guidance for ensuring the operation safety of erected EHV / UHV transmission lines and the application of multi circuit transmission lines on the same tower.