电力系统整定计算中一种运行方式变化的处理方法  

Method for running mode variating in setting calculation of power system

作　　者：孙鸣[1] 孔健[1] 程小平[2] 

机构地区：[1]合肥工业大学电气工程学院,安徽合肥230009 [2]安徽省电力中心调度所,安徽合肥230061

出　　处：《继电器》2004年第9期65-67,共3页Relay

摘　　要：电力系统整定计算中,会涉及到切除一个元件,同时考虑另一个元件相继动作这种运行方式的变化。根据支路追加法修改阻抗矩阵的基本原理,进一步推导出电力网络断开两回支路时,阻抗矩阵元素修正的公式,同时考虑相继动作自身的特点,提出了统一的等效网络模型和计算机算法。The running mode variating will be concerned in setting calculation of power system that an element is cut off,synchronously,another element acting one after the other. Based on the fundamental of modifying impedance matrix by adding the branch,the modifier formula of impedance matrix element is derived when two elements are cut off. And considering the characteristic of this action,a uniform, equivalent network model including the algorithm is put forward.

关 键 词：电力系统 继电保护 整定计算 运行方式 零序电流 计算机 

分 类 号：TM744[电气工程—电力系统及自动化]