Simulation and Analysis of Magnetic Field in HVDC Transmission Cable

Abstract

HVDC is well known for its high efficiency and controllability, which is the first choice when it comes to long-distance, colossal-power transmission. Currently, HVDC transmission is a worldwide concerned topic, especially for Australia, where the imbalance of electricity between populated areas and remote regions is a difficulty to be solved. For instance, Basslink, a brilliant HVDC transmission achievement gave a solution to this problem. At the same time, the magnetic and electrical field produced by HVDC is totally different from traditional AC transmission, which, is a special topic worth researching. This paper will investigate the HVDC transmission cable magnetic field's characteristics and its interaction with the nearby cables. The scope of our topic are: the analysis of the magnetic field; how the magnetic field of one cable influences others; what are the advantages and disadvantages of the interactions; the comparison between HVDC transmission and common AC transmission with the grid; use ANSYS to simulate the possible situations of the magnetic field of HVDC Transmission Cable that would happen in the real world; the human exposure to magnetic field are investigated considering different laying configurations, conductor dispositions, and supply conditions.