摘要
基于长线分布参数模型对输电线路开路阻抗和短路阻抗进行了仿真分析和模型试验,分析了异频法单端测量超长距离交直流输电线路工频参数时由分布参数影响造成的测量误差,直流输电线路的工频参数的现场测试数据验证了分析结果,并依据分布参数模型进行数据校正,解决了长线路尤其是直流输电线路工频参数的测量误差问题.
Basing on the transmission lines distributed parameter model,the open-circuit and short-circuit impedances of power line are simulated and tested.The error caused by the distribution parameters impact is analyzed when the frequency parameters of ultra-long AC DC power line are measured through varying frequency method with single-ended.The field test data of the DC power line frequency parameters verified the simulation results;and the data correction is performed based on the distributed parameter model to eliminate frequency parameters measurement error of the long power line,especially the DC power line.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2012年第1期111-115,共5页
Engineering Journal of Wuhan University
关键词
长线路
异频法
分布参数模型
工频参数
误差分析
数据校正
long power line
varying frequency method
distributed parameter model
power frequency parameters
error analysis
data correction
