﻿ 不同结构500 kV交直流线路共走廊的干扰与可行性研究

# 不同结构500 kV交直流线路共走廊的干扰与可行性研究Study on the Interference of 500 kV AC Transmission Lines with Different Structure and DC Transmission Lines and the Co-Existence

Abstract: In the paper the interference between the 500 kV AC transmission lines with different structure and DC transmission line is investigated, and the feasibility to build the AC lines and DC lines in common corridor is analyzed. Based on the theory of conduction coupling, a novel equivalent model to analyze the influence between the parallel DC and AC transmission lines is presented. Calculation for the induced voltage on the DC transmission lines for different arrangement of the AC conductors and different distance between the AC and DC transmission lines were carried out. Results indicate that the inducted voltage of the horizontal arrangement of AC lines is 20.719 kV when the distance between the AC transmission lines and DC transmission lines is 40 m, the inducted voltage of the AC compact trans-mission lines decrease by 28.7%, and the inducted voltage of the AC double circuit transmission lines on the same tower is 35.42 kV, increase by 34.42%. In addition, the induced voltage decreases with the increasing of the distance.

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