摘要
在配电网络合环操作前后,合环线路稳态潮流可能发生很大变化,导致设备过载甚至断路器跳闸。分析合环线路稳态潮流与设备阻抗、电压、负荷的关系,建立合环线路功率模型,提出降低合环线路稳态电流的方法。并通过对1起配电网合环失败的实例计算,证明该分析方法的正确性和有效性。
Steady-state power flow may change greatly before and after looping-in operation of distribution networks,which may result in overload of equipment or tripping of breakers.The paper analyzes relationship among steady-state power flow of looping-in lines and impedance,voltage and load of equipment,it establishes power model of looping-in lines and proposes method of reducing steady-state current.By example calculation of a looping-in operation failure in distribution networks,the correctness and effectiveness of the analytical method is proved.
出处
《广东电力》
2011年第6期84-86,91,共4页
Guangdong Electric Power
关键词
配电网络
合环
稳态潮流
distribution network
looping-in
steady-state flow
