计及土壤电离的地网冲击特性分析  

Analysis of Impulse Characteristics of Grounding Grid in Consideration of Soil Ionization

作　　者：蒋战朋[1] 文远芳[1] 冯天佑[2] 黄韬[1] 吕健双[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074 [2]湖北省电力试验研究院,湖北武汉430077

出　　处：《水电能源科学》2011年第11期178-181,217,共5页Water Resources and Power

摘　　要：针对一般方法及CDEGS在计算接地系统暂态性能时均未考虑土壤电离的非线性特性影响的问题,提出了将CDEGS和自编程序相结合并考虑土壤电离因素对地网冲击特性进行分析的新方法,以不同地网结构为例,比较了该方法与其他考虑土壤电离的频域方法的计算结果。结果表明,本文方法合理、有效、简便、快捷。The general method and CDEGS compute the impulse characteristics of grounding system without considering nonlinear influence of soil ionization. The combination of CDEGS with programming is proposed to compute the impulse characteristics of grounding grid by considering soil ionization factor. Taking different structure of grounding grid for an example, the proposed method is compared with other methods in frequency domain which consider the factor of soil ionization. The results show that the proposed method is reasonable, effective, simple and quick.

关 键 词：土壤电离 地网 冲击特性 CDEGS 编程 频域计算 

分 类 号：TM86[电气工程—高电压与绝缘技术]