Research on Energy Storage Capacity Optimization Based on Reliable Output Power of Micro-grid
The optimal storage capacity is a key parameter to ensure the stable and reliable operation of micro-grid in island mode.In this context,an analytical method is developed to analyze the deployment of energy storage capac-ity with robust formulas and stochastic optimization constrained by chance.The total cost is minimized in terms of optimal storage capacity and generator power,taking into account generation and storage power and energy con-straints.Assume that the short/residual power will come from/be injected into the storage system.In this paper,the total memory power and energy constraints are taken as chance constraints,and conservative convex approximation is used to express tractability.In particular,in order to overcome difficulties of optimization problem scale,we adopt a separable(distributed)structure and use dual decomposition to obtain the optimal solution.Numerical experiments verify the role of prior knowledge in uncertainty modeling of optimal storage capacity selection.
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维普
