并行交直流输电线路感应电流研究

Research on Induced Current of Parallel AC/DC Transmission Lines

随着我国电力能源需求量的不断扩大,大区域的电网互联工程逐渐深化,特高压输电技术是形成我国电力资源有效调配的关键技术。越来越多的特高压输电工程投产建设,共用输电走廊的情况越来越普遍,密集的线路之间通过电磁场的联系会形成较严重的相间干扰,这些干扰对通信设备的影响较大,且不利于线路运维检修工作的开展。因此,并行的交直流输电线路之间感应电流的形成与影响具有一定的研究价值。

With the continuous expansion of China′s power energy demand and the deepening of large regional power grid interconnection project,UHV transmission technology is the key technology for the effective allocation of China′s power resources.More and more UHV transmission projects are put into operation and construction,and the situation of sharing transmission corridor is becoming more and more common.The electromagnetic field connection between dense lines will form more serious inter phase interference,which has a greater impact on communication equipment and is not conducive to the development of line operation and maintenance work.Therefore,the formation and influence of induced current between parallel AC and DC transmission lines has a certain research value.