【摘要】 文中引入动态拓扑结构思想对接地网的未知拓扑结构进行重构,得到一系列满足一定距离阀值dij的拓扑可行解,再通过邻居互连规则进行筛选、优化从而得到接地网的最优拓扑结构。为验证重构效果,笔者对一个重构的小型接地网进行了分析,结果表明,在满足接地网导体等间距分布的前提下,当接地引下线发生偏移时,重构所得可及节点电压值的均方差更小,同时由异常的节点电压值还可推测出异常的接地引下线。更多还原

【Abstract】 The dynamic topological structure method is introduced to reconstruct the unknown topology of substation grounding grid,thus the solutions to the topology,which satisfy certain threshold distance,are obtained.As a result,the optimal topological structure is obtained via neighbor interconnection.To confirm the reconstruction,a small grounding grid is reconstructed and analyzed.The results show that the mean square voltage of touchable nodes with migration of ground leads is smaller than that without migration when the grounding conductors are equally spaced.Moreover,the abnormal ground leads can be predicted by voltage of nodes.更多还原