PV并网的配网联络开关优化布置研究

Study on Optimal Layout of Distribution Network Switch with Consideration of PV

分布式光伏并网改变了配网的单电源放射状运行模式,使得配网联络开关设置需要重新考量。首先对光伏出力作等效变换,将其与常规负荷进行融合,并以积分中值定理为依托对新的负荷曲线进行区间划设;其次基于电气量约束、网络拓扑约束和开关操作次数约束,以线路运行损耗最小和停电损失最少为目标进行线路联络开关布置的建模;最后是实证分析。

The distributed PV grid connection changed the radial operation mode of the single power supply of the distribution network, so that the connection switch settings of the distribution network need to be reconsidered. Firstly,the equivalent transformation of PV output is made, with the conventional load of fusion, and the interval of load curve is delimited based on the integral mean value theorem; secondly, based on the electrical quantity constraint, network topological constraints and the constraints of switching operation, the modeling of line contact switch layout is done aiming at minimizing the loss of line operation and power loss. And final phase is empirical analysis.