500kV输电线路零序阻抗的测量及研究  

Measurement and research of the zero sequence impedance of the 500 kV transmission line

作　　者：胡中慧[1] 傅中[2] 杨道文[2] 郑世玲[2] 刘振山[2] 

机构地区：[1]安徽省淮南供电公司,安徽淮南232007 [2]安徽省电力科学研究院,安徽合肥230022

出　　处：《电力系统保护与控制》2009年第14期90-92,共3页Power System Protection and Control

摘　　要：500kV输电线路零序阻抗受线路结构、运行方式、干扰电压、地质情况等因素的影响,其测量结果会产生误差,具体分析了零序阻抗原理、不同运行方式下零序阻抗实测的方法和理论分析,并结合实际研究了几条500kV输电线路零序参数,提出了在实测和计算中注意的问题,提高实测数值的准确性。With the effect of line structure, interference source and geologic distribution, the zero sequence impedance of the 500kV transmission line varies greatly. This paper analyzes the zero sequence impedance of several 500kV transmission lines and analyzes the theory and methods of measurement in detail. Meanwhile, it puts forward some problems that should be paid attention to during the process of measurement and calculation.

关 键 词：输电线路 零序阻抗 理论 实测 分析 

分 类 号：TM934.7[电气工程—电力电子与电力传动] TM75