含源-荷-储的微电网能量管理优化策略

Energy Management Optimization Strategy of Microgrid with Source-load-storage

随着双碳战略目标的实施,传统微电网能量管理策略难以适应大量新能源接入微电网的运行需要,本文从提升微电网新能源利用率和减少微电网运行成本的规划目标出发,以包含新能源发电装置、储能装置的微电网为研究主体,基于分时电价构建微电网运行成本-效益模型及新能源利用率模型;同时考虑微电网内能量流动与微电网群、外网的能量交换,提出微电网实时能量管理策略;采用改进进化算法进行仿真分析,求解所提模型,得到微电网最优能量管理策略,并与传统的微电网能量管理策略进行对比,验证了本文所提策略对改善新能源发电利用水平、促进新能源发电大规模并网及降低运行成本的有效性。

With the implementation of the dual-carbon strategic goal,the traditional microgrid energy management strategy is difficult to adapt to the operation needs of a large number of new energy connected to the microgrid.Planning objectives of improving the utilization rate of new energy in the microgrid and reducing the operating cost of the microgrid are considered in this paper.Taking the microgrid including new energy power generation devices and energy storage devices as the research core,the microgrid operation cost-benefit model and the new energy utilization model are constructed based on the time-of-use electricity price.The energy flow in the microgrid and the energy exchange between the microgrid cluster and the external grid are considered,a real-time energy management strategy for the microgrid is proposed.The proposed model is solved by the improved evolutionary algorithm,Finally,the improved evolutionary algorithm is used for simulation analysis,the proposed model is solved,and the optimal energy management strategy of microgrid is obtained.Compared with the traditional microgrid energy management strategy,proposed strategy is effective in improving the utilization level of new energy power generation,promoting the large-scale grid connection of new energy power generation and reducing operating costs.