Research on Photovoltaic Energy Storage Capacity Allocation Method Based on FCM Clustering
To improve the rationality of distributed photovoltaic energy storage capacity allocation,a photovoltaic energy storage capacity allocation method based on fuzzy C-means(FCM)clustering is proposed.By analyzing the distributed photovoltaic system topology,the analysis results are used as the information basis to develop a corresponding distributed photovoltaic energy storage capacity allocation scheme.Objectives and constraints are formulated from the perspectives of distributed power investors and grid managers,and a distributed photovoltaic energy storage capacity allocation model is constructed.The FCM clustering algorithm is used to effectively allocate the initial values calculated iteratively within the allocation model.The algorithm is capable of suppressing photovoltaic energy storage high-capacity battery fluctuations,improving energy storage performance and efficiency,so as to obtain optimal capacity allocation.The proposed method can realize the energy storage output in the shortest time,which makes the average value of photovoltaic self-consumption rate reach 93.5% .The distributed photovoltaic energy storage capacity allocation of the method is effective.
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