10kV电网电磁合环操作安全性评估方法

Safety Assessment Methods of Loop Closing Operation in 10kV Distribution Network

电磁合环操作可以提高系统供电可靠性,但其操作的安全性一直都没有进行系统的分析,无法预测合环操作风险会有多大。为评估合环操作的安全性,对合环方式进行了分析,建立了合环稳态电流计算模型,提出两种电磁合环操作安全性评估方法,并用该两种方法对广州电网电磁合环操作进行了评估,评估结果表明广州电网电磁合环操作整体安全性水平较高,并将评估结论用于指导合环操作,对电磁合环操作的总体安全性有了深刻的认识。

The loop closing operation can improve the reliability of power supply,but the safety of the operation has not been given a systematic analysis,the risk of the operation is unknown.In order to evaluate the safety of loop closing operation,the types of loop closing operation are analyzed,calculation model of the steady state current is established,two safety assessment methods of loop closing operation are introduced,and these methods are used for assessing the safety of the loop closing operation in Guangzhou power grid.The assessment result shows the overall safety level of the loop closing operation in Guangzhou power grid is very high,which is used to instruct the loop closing operation,the safety of the loop closing operation is recognized deeply.