摘要
在城市10kV配电网中，为提高供电可靠性采取配电网合环操作是电力系统运行中常用的手段，在合环操作时可能产生环流过大引起过流保护或速断保护误动。该文提出了配电网合环操作的简化模型，分析影响合环电流的的因素，提出解决实际问题的方法，具有一定的理论意义和实用价值。
It is a common means to operate in closed - loop mode for improving power supply reliability in the lOkV distribution system. However, large circulating current by closed - loop operation will cause the maloperation of overcurrent and instantaneous trip protection. This paper presents a simplified model of distribution network closed - loop operation, analyzes the influence factors of closed - loop current, more- over, the methods to solve practical problems are proposed,it has some theoretical and practical value.
出处
《贵州电力技术》
2010年第4期33-36,共4页
Guizhou Electric Power Technology
关键词
10kV配电网
潮流计算
合环
稳态电流
冲击电流
10kV distribution network, power flow calculation, closed - loop, steady state current, impulse current
