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.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第14期90-92,共3页
Power System Protection and Control
关键词
输电线路
零序阻抗
理论
实测
分析
transmission line
zero sequence impedance
theory
actual measurement
analysis
