提升配电网供电性能的风-光-储两阶段规划与配置

针对配电网中分布式电源（DG）不合理规划引起供电性能下降的问题，文中提出了一种在风-光-储接入情况下的配电网两阶段规划与配置方法。第一阶段通过计算节点有功网损灵敏度确定风-光电源的接入位置和容量，第二阶段以储能接入容量最小，系统电压稳定指标最大，负荷缺电率最小建立多目标规划模型，同时结合节点平均等效负荷对储能充/放电进行管理。为提高第二阶段多目标问题的求解精度，提出了一种基于多目标粒子群算法的混合智能求解算法用于求解第二阶段模型，最后利用序数偏好法（TOPSIS）选出储能最优接入方案。为验证本文所提方法的有效性在IEEE-33节点系统上设置四种场景进行仿真测试，结果表明所提方法可以明显改善配电网的运行情况，给相关规划与配置提供借鉴与参考。

Wind-solar-storage two-stage planning and configuration to improve power supply performance of distribution networks

Aiming at the problem of power supply performance degradation caused by unreasonable distributed power (DG) planning in the distribution network, a two-stage planning and configuration method for the distribution network under wind-solar-storage access is proposed. In the first stage, the location and capacity of the wind-solar power supply are determined by calculating the node active power loss sensitivity. In the second stage, the multi-objective planning model is established with the minimum energy storage access capacity, the largest system voltage stability index, and the smallest load shortage rate. At the same time, the energy storage charge / discharge is managed in conjunction with the node''s average equivalent load. In order to improve the solution accuracy of the second-stage multi-objective problem, a hybrid intelligent solution algorithm based on multi-objective particle swarm optimization algorithm is proposed to solve the second-stage model. Finally, the ordinal preference method (TOPSIS) is used to select the optimal energy storage solution. In order to verify the effectiveness of the proposed method, four scenarios were set up on the IEEE-33 node system for simulation testing. The results show that the proposed method can significantly improve the operation of the distribution network and provide reference and reference for related planning and configuration.