配电网合环操作与合环条件分析

Analysis of Closing Operation and Closing OperationConditions in Distribution Network

为了便于配电网合环条件判断,本文对配电网的合环电流以及配电网合环操作进行分析,在合环模型下进行合环计算,给出是否可进行合环操作的判断流程。在上述分析的基础上,得出配电网合环操作的条件:为了保证合环操作不对配电网产生影响,需对线路的负荷进行严格把控,使其维持在一个相对较低的水平;对配电网合环操作开始前,需确保线路载荷处于规定水平以下;进行合环操作后的配电网的上级电源需在相同母线上。实验结果验证了本文合环判断条件的可行性。

In order to judge the closing conditions of distribution network,the closing current of distribution network and the closing operation of distribution network are analyzed,the closing calculation is carried out under the closing model,and the judging process of whether the closing operation can be carried out is given.On the basis of the above analysis,the conditions for the closing operation of distribution network are obtained:in order to ensure that the closing operation does not affect the distribution network,it is necessary to strictly control the load of the line so as to maintain it at a relatively low level;before the closing operation of distribution network,it is necessary to ensure that the load of the line is below the prescribed level;The upper power supply of the distribution network after closing operation should be on the same bus.The experimental results validate the feasibility of the judging conditions for the closure of rings in this paper.