摘要
为了研究新型石墨接地材料在高土壤电阻率地区的冲击特性,研究运用CDEGS软件对新型石墨接地材料在高土壤电阻率环境下的电感效应进行分析。从不同尺寸、不同土壤电阻率两个方面与传统接地钢材料进行对比,得到如下结论:在较低土壤电阻率土壤中,冲击接地阻抗受接地体长度的影响很大;在相同尺寸情况下,新型石墨接地材料在高频电流下的电感效应比钢材料小,冲击接地阻抗也小于钢材料,尤其在高土壤电阻率土壤中,新型石墨接地材料在电感效应方面明显优于传统接地钢材料。
In order to study the impact characteristics of new graphite grounding materials in high soil resistivity areas,this research uses CDEGS software to analyze the inductance effect of new graphite grounding materials in high soil resistivity environment,from two aspects of different sizes and different soil resistivities.Comparison to traditional grounded steel materials,the following conclusions are obtained:In lower soil resistivity soils,the impact grounding impedance is greatly affected by the length of the grounding body;Under the same size,the new graphite grounding material has a smaller inductance effect at high frequency current than steel material,and the impact grounding impedance is also smaller than steel material,especially in high soil resistivity soil,It is significantly superior to traditional grounded steel materials in terms of inductance.
作者
郭轶磊
赵自威
张康伟
GUO Yi-lei;ZHAO Zi-wei;ZHANG Kang-wei(College of Electrical Engineering&New Energy,China Three Gorges University,Yichang443002,China;Hubei Provincial Collaborative Innovation Center for New Energy Microgrid,CTGU,Yichang443002,China;Wuhan Branch,China Electric Power Research Institute,Wuhan 430074,China;Changshou Power Supply Bureau,Chongqing Electric Power Corp.,Chongqing401220,China)
出处
《电力学报》
2019年第1期1-6,共6页
Journal of Electric Power
基金
国家自然科学基金(51507092)
关键词
高土壤电阻率
新型石墨接地材料
冲击特性
电感效应
接地阻抗
high soil resistivity
new graphite grounding material
impact characteristics
inductive effect
ground impedance
