配电网络合环冲击电流的分析  

Analysis of surge current due to closing loop in distribution grid

作　　者：陈霄[1] 王磊[1] 李扬[1] 

机构地区：[1]东南大学电气工程系,江苏南京210096

出　　处：《电力自动化设备》2005年第4期40-42,共3页Electric Power Automation Equipment

摘　　要：配电网络合环操作时,一般只验证合环后稳态电流是否会造成潮流超过设备限额,而没有考虑合环瞬时的最大冲击电流对电网的安全、稳定运行的影响。为此提出了计算合环最大冲击电流的方法,给出了合环冲击电流计算的数学模型及计算方法和计算流程图,并根据现场实际情况编写程序对此过程进行模拟。目前,该系统已在江苏大丰、靖江配电网络系统中投入运行,实际应用表明,该方法对电网实际运行有一定的指导意义。Maximum surge current due to closing loop in distribution grid is not taken account of at present,which affects security and stability of the system. This paper brings forward a method to calculate the maximum surge current and simulate the whole process by programming. Its mathe-matical model,calculating means and flowchart are presented. Applications in local distribution systems show that the proposed method has reference meaning for the system operation.

关 键 词：配电网络 合环 冲击电流 

分 类 号：TM734[电气工程—电力系统及自动化] TM76