含风储系统的有源配电网计划孤岛划分策略

计划孤岛划分对于提高有源配电网中重要负荷的可靠性具有重要意义。为解决风力发电间歇性和不确定性对计划孤岛划分的影响，基于日前风电出力的预测曲线和储能出力的情况，首先构建了计划孤岛划分条件下的风储联合系统等效出力模型。然后，综合考虑负荷的重要等级和运行特点，建立了含风储系统的有源配电网计划孤岛划分模型，并采用深度优先的搜索思想，提出了一种快速、易实现的启发式孤岛划分算法。最后，以改进的美国PG&E69节点系统为算例进行验证分析。仿真结果表明：计划孤岛划分模型及求解算法能够较好兼顾风储系统的出力特点和负荷的重要等级，具有可行性和有效性。

Planned Islanding Strategy of Active Distribution Network with Wind Storage System

The planned islanding has great significance to improve the reliability and security of the key load in active distribution network. In order to reduce the influence of the intermittent and uncertainty of wind power on the planned islanding, the equivalent output model of wind storage combined system under the planned islanding condition was analyzed based on the forecasting curve of wind power and the energy storage capacity. Then, the planned islanding model of the active distribution network with wind storage system was built by comprehensively considering the important level and operation characteristics of the load. Furthermore, a fast and flexible heuristic islanding algorithm was presented based on the depth-first searching method. Finally, the feasibility and validity of the proposed model and algorithm were validated by American PG&E69 node system. The simulation results show that the planned islanding model and solving algorithm can give consideration to the operation characteristics of wind storage system and the important level of load.