计及多属性综合指标与经济性的电网侧储能系统选址配置方法

针对大规模储能技术在电网侧的多功能应用需求，将网侧储能系统的规划问题分解为两个层次，即储能系统的多点选址和功率容量优化配置。在储能系统多点选址层面，结合储能系统在电网侧的多功能需求及系统稳定性和经济性，基于线路负载率、网损灵敏度、电压灵敏度，计及指标的时序性，构建了多属性综合指标评估模型。在储能系统功率容量优化配置层面，建立了双层规划数学模型，外层考虑延缓输电线路升级收益，减小系统网损收益、储能投资成本和系统运行成本，以配置储能系统的净收益最大为目标，优化多点布局储能系统功率与容量；内层以配置储能系统后的运行成本最低为目标，优化源、储运行曲线。最后基于改进的IEEE 24节点算例验证了所提模型的有效性，为大规模储能技术在电网侧的规划奠定了基础。

Siting and Configuration Methods for Grid-Side Energy Storage System Considering Multi-Attribute Comprehensive Indices and Economy

According to the multi-functional application requirements of large-scale energy storage technology on the grid side， the planning problem of the grid-side energy storage system is decomposed into two levels， namely multi-site selection of the energy storage system and optimal allocation of power capacity. At the multi-site location level of the energy storage system， combined with the multi-functional requirements of the energy storage system on the grid side， combined with system stability and economy， on the basis of the line load rate， network loss sensitivity， voltage sensitivity， and taking into account the timing of the indicators， a multi-attribute comprehensive index evaluation model is constructed. At the level of optimization power capacity configuration of multi-point layout energy storage system， a two-level programming mathematical model is established. The outer layer considers delaying the upgrade income of transmission line， reducing system network-loss income， energy storage investment costs， and system operation costs to configure energy storage. The goal is to maximize the net profit of the system， and optimize the layout of energy-storage power and capacity at multiple points. The inner layer optimizes the source and storage operation curves with the goal of minimizing the operating cost after the energy storage is configured. Finally， the validity of the proposed model is verified on the basis of an improved IEEE 24-node calculation example， which lays the foundation for large-scale energy storage planning on the grid side.