Optimal Placement and Sizing of Grid-scale Energy Storage in Distribution Networks with Security Constrains

Energy storage is gaining greater attention in the industry, as it can be used for various ancillary services. The large-scale integration of grid-scale energy storage and the increasing penetration of renewable resources motivate the development of energy storage. Optimal placement and sizing of grid-scale energy storage units in the distribution network can effectively reduce the energy storage investment and optimize the overall economic benefit of power grids. With security constraints considered, this paper proposes an optimization model for the optimal placement and sizing of grid-scale energy storage problem, which aims at minimizing the investment and operational costs. The optimization problem is solved using yalmip toolkit and we show the performance of the proposed approach using the IEEE 9 bus test system.