Based on KCL this article puts forward a new solution for measurement processing in state estimate,bad data check and identification and auxiliary bus replacement of electric power systems.

• 依据基尔霍夫电流定律(KCL),通过模拟人的思维推理过程,提出了一种状态估计量测创建与回分、坏数据检测和辨识、自动旁母替代的新方案。