Optimal Co-Planning of ESSs and Line Reinforcement Considering the Dispatchability of Active Distribution Networks

The paper presents a method for the co-optimization of energy storage systems allocation and line reinforcement in active distribution networks. objective is to guarantee capability an network follow dispatch plan by appropriately coping with high uncertainties loads stochastic renewable generation while ensuring secure operation grid minimizing power losses. proposed formulation relies on modified so-called Augmented Relaxed Optimal Power Flow (AR-OPF) method, which considers exact ( i.e. , non-approximated) AC-OPF convexified way (the AR-OPF proven provide global optimal solution OPF problem radial grids). To tackle complexity computational burden planning problem, Benders decomposition algorithm used and, order enhance convergence speed numerical has been suitably determine site size sequentially. assess performance simulations are conducted real Swiss composed 55 nodes hosting large amount photovoltaic generation. sensitivity analysis respect capacity also carried out effectiveness method.