750kV平乾同塔双回线路参数仿真计算研究  

Study on Parameters Simulation & Calculation of 750kV Ping-Qian Double Transmission Lines on Same Tower

作　　者：张小庆[1] 彭书涛[1] 李小腾[1] 刘颖[1] 

机构地区：[1]陕西电力科学研究院,陕西西安710054

出　　处：《陕西电力》2008年第9期14-17,共4页Shanxi Electric Power

摘　　要：对国内首条750 kV同塔双回线路——平乾线路的工顿参数进行了仿真计算。首先,结合线路经过的地貌、路径等实际情况,考虑线路杆塔的变化、换位情况等因素建立了750 kV平乾同塔双回线路的详细计算模型;其次,计算分析了不同大地电阻率下线路的工频参数,并给出了模拟实测的750 kV平乾线路的线路工频参数;最后,根据变频实测方案对线路进行了仿真计算,给出了变频仿真结果,为750 kV线路参数实测及系统调试提供数据支持。Simulation ＆ calculation are conducted to the power frequency parameters of the first 750 kV Ping-Qian double transmission line on same tower in China. Firstly, combined with the landform and route of transmission line, considered the variation ＆ transposition of towers, the detailed calculation model of 750 kV Ping-Qian double transmission line on same tower is set up. Secondly, the power frequency under different earth resistivity is calculated and analyzed, and the measured power frequency for simulated 750 kV Ping-Qian transmission line is given. Last, simulation and calculation are made to the transmission line as per variable frequency measurement scheme, simulation result is obtained, which can supply data support for 750 kV transmission line measurement ＆ system commissioning.

关 键 词：750KV同塔双回线路 线路工频参数 异频参数 仿真计算 

分 类 号：TM744[电气工程—电力系统及自动化] TP391.9[自动化与计算机技术—计算机应用技术]