Optimal configuration of new energy grid connected energy storage capacity from the perspective of dual carbon Online publication date: Thu, 12-Oct-2023
by Mengdi Zeng; Yu Cai; Kaihui Shen
International Journal of Energy Technology and Policy (IJETP), Vol. 18, No. 3/4/5, 2023
Abstract: To reduce the load shortage rate of new energy grid connection and suppress grid connection fluctuations, an optimised configuration method for energy storage capacity is proposed. After constructing a new energy grid connected energy storage model, establish an objective function based on the dual carbon perspective. Following the principle of electricity balance, ensure that the electricity demand of the grid connected load is equivalent to the output of the power generation module, and calculate the energy storage capacity. Finally, based on power fluctuations, advanced control methods are used to reasonably regulate energy storage capacity. The experiment shows that after applying this method, the power fluctuation of new energy grid connection is between 30-40 kW, the state of charge of energy storage is between 80-90%, the load shortage rate is between 0.012-0.014%, and the service life of the battery can reach eight years, indicating the feasibility of this method.
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