基于CVaR的配电网储能容量配置研究  

Research on Energy Storage Capacity Configuration of Distribution Network Based on CVaR

作　　者：周立立 王仪贤 ZHOU Li-li;WANG Yi-xian(Skill Training Center of State Grid Sichuan Electric Power Company,Chengdu 611133,China;State Grid Shanghai Extra High Voltage Company,Shanghai 200030,China)

机构地区：[1]国网四川省电力公司技能培训中心,四川成都611133 [2]国网上海超高压公司,上海200030

出　　处：《电工电气》2025年第3期21-28,52,共9页Electrotechnics Electric

摘　　要：为解决可再生能源发电、能源价格和负荷预测的不确定性给配电网储能规划带来的风险问题,以配电网储能投资净效益最大为目标,并引入条件风险价值(CVaR)进行投资风险管控,采用多场景技术建立了计及不确定性的储能容量配置模型。储能投资净效益由储能低储高发套利效益、延缓配电网投资效益、减少弃风效益、补贴效益及考虑循环寿命的储能全寿命周期成本决定。潮流模型中引入二阶锥规划(SOCP)将传统的非线性非凸潮流模型转换为线性凸集模型以提高求解速度。通过算例分析表明,所提模型能较好地反映配电网储能投资面临的不确定因素及风险水平,为解决投资效益与风险均衡下的配电网储能配置提供理论参考。In order to solve the risk problems brought by the uncertainty of renewable energy generation,energy prices and load forecasts to the distribution network energy storage planning,with the goal of maximizing the net benefits of energy storage investment in the distribu-tion network and introducing the conditional value-at-risk(CVaR)for the investment risk control,a storage capacity allocation model taking into account the uncertainty is established by using multi-scenario technology.The net benefit of energy storage investment is determined by the arbitrage benefit of low storage and high generation of energy storage,delayed distribution network investment benefits,reduce wind curtailment benefit,subsidy benefits,and the full life cycle cost of energy storage considering cycle life.The introduction of second order cone programming(SOCP)in the tidal current model transforms the traditional nonlinear nonconvex tidal current model into a linear convex set model to improve the solution speed.The analysis of calculation examples shows that the proposed model can better reflect the uncertain factors and risk levels faced by the distribution network energy storage investment,and provide a theoretical reference for solving the distri-bution network energy storage configuration under the equilibrium of investment benefits and risks.

关 键 词：配电网 储能 优化配置 不确定性 条件风险价值 

分 类 号：TM74[电气工程—电力系统及自动化]