Abstract
Conference Title: 2018 North American Power Symposium (NAPS) Conference Start Date: 2018, Sept. 9 Conference End Date: 2018, Sept. 11 Conference Location: Fargo, ND, USA This paper proposes a distributed energy storage planning model for hybrid AC/DC microgrids. It is assumed that there is a hybrid AC/DC microgrid with various distributed generators (DGs) and a combination of AC and DC loads, without a distributed energy storage (DES). The optimal power and energy size and location of the DES unit are determined to minimize the microgrid total cost, which includes the investment cost of the DES and its required converter, the operation cost of dispatchable DGs and cost/benefit of exchanged power with the utility grid, as well as the microgrid reliability cost. The problem is formulated as a mixed integer linear programming (MILP) and solved by CPLEX. The proposed model is applied to a modified IEEE 33-bus standard test system. The sensitivity analysis with respect to various parameters such as the ratio of DC loads shows the acceptable performance and merits of the proposed model.