On the Configuration of Hybrid Energy Storage in Micro-grid Systems with Multiple Micro Power Sources
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 charac-teristics 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 ex-pression 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.
hybrid energy storage systemphotovoltaic power fluctuationmicro-gridcapacity configuration
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