500kV紧凑输电技术及其在华东电网的应用前景  

500 kV Compact Transmission Technology And Its Application Prospect in ECPN

作　　者：张滨[1] 岑文辉[1] 黄家裕[1] 

机构地区：[1]上海交通大学

出　　处：《华东电力》1998年第11期1-5,共5页East China Electric Power

摘　　要：结合华东电网５００ｋＶ系统的现状，对单回和双回结构的紧凑型输电线路进行研究，计算了不同排列方式下线路导线的最大表面电位梯度、波阻抗、自然传输功率、电磁场等参数，并与传统的５００ｋＶ输电线路进行比较。采用紧凑输电技术后，线路的波阻抗得以减小，自然传输功率有较大幅度提高，走廊利用率也显著提高。阐明随着电力工业的不断发展。Combined with the situation of 500kV AC system of East China, several typical models of compact transmission lines, including single circuit model and double circuit model are outilined. By Calculating the different arrangements of conduct lines, the parameters such as maximum surface field gradients, surge impedance, natural power transfer capacity, and electromagnetic fields of compact transmission lines are calculated and also compared with traditional transmission lines. By adopting the compact transmission lines, surge impedance can be decreased and results the higher natural power transfer capacity significantly.

关 键 词：紧凑型 输电线路 电位梯度 波阻抗 电网 

分 类 号：TM726[电气工程—电力系统及自动化] TM727