机构地区: 武汉大学电气工程学院
出 处: 《中国电机工程学报》 2003年第12期89-93,共5页
摘 要: 基于场路结合的思想,提出了一种新的大型地网接地参数计算方法。该方法考虑了接地导体的电阻、自感和导体间的互感。与国际著名的接地分析软件包CDEGS对比分析表明,该文的分析方法是正确的。采用该文的方法,对大型地网的工频接地阻抗和网内电位差进行了分析计算,计算结果与现场实测结果吻合。 Based on field-circuit coupling theory, a numerical calculation method of substation grounding grids is presented in this paper. The self-inductance of conductors and mutual inductance between conductors are taken into account. The results are compared with those of world popular software CDEGS and the method is verified. The grounding impedance and potential difference within grounding grids are analyzed. Comparison with practical applications is also presented.