多微源情况下微电网系统混合储能的配置方法研究

On the Configuration of Hybrid Energy Storage in Micro-grid Systems with Multiple Micro Power Sources

双碳背景下,由于大量分布式电源的接入以及负荷本身的波动性,导致直流微网母线电压及频率不稳定,而储能系统作为解决此问题的一种手段,亦使其成本上升。基于各类储能特性,提出了一种功率型储能与能量型储能相互配合的风光优化储能模型,根据全生命周期费用理论,建立储能系统成本表达式,以函数值最小为目标,优化储能系统配置模型,最后通过HOMER软件验证了优化模型的正确性和有效性。

Under the background of carbon peaking and carbon neutrality goals,the busbar voltage and frequency of DC micro-grids are unstable due to the integration of a large amount of distributed power sources and the fluctuation of the load itself.As an effective way to solve this problem,energy storage systems also increase the costs.Based on the characteristics of various energy storage techniques,a wind-solar power optimization energy storage model is proposed,in which the power type storage and the energy type storage are combined.Based on the full lifecycle cost theory,the expression formula of the cost of the energy storage system is established.Then,the energy storage system configuration model is optimized with the goal of minimum cost.At last,the validity and effectiveness of the optimization model are verified with HOMER software.