摘要
为更好地分析和研究变电站故障电流分布,准确确定故障电流分流系数,利用大功率变频信号发生系统和柔性Rogrowski线圈对大学城110 k V变电站故障电流分流系数进行了测量,利用CDEGS软件对大学城110 k V变电站故障短路下电流分布进行了仿真计算,并与实测结果进行了对比分析。仿真计算值与实测值对比吻合性较好,验证了仿真计算方法的准确性。对仿真计算的误差来源进行了分析。
In order to analyze and study the distribution of the substation fault current, and to determine the fault current shunt coefficient, the fault current shunt coefficient of the Daxuecheng 110 kV substation＇s grounding grid is measured by using the high frequency signal generating system and flexible Rogrowski coil. The short circuit current distribution in the grounding grid of the substation is simulated by using CDEGS, and the results are compared with the experimental analysis. The simulated results and the experimental results are highly consistent with each other. The reasons of the errors of the simulation are analyzed.
出处
《高压电器》
CAS
CSCD
北大核心
2016年第1期154-161,共8页
High Voltage Apparatus
关键词
地网
分流系数
CDEGS
仿真
对比分析
grounding grid
shunt current coefficient
CDEGS
simulation
comparative analysis
