Optimal placement and operation of BESS in a distribution network considering the net present value of energy losses cost

In recent years, penetration of battery energy storage systems in distribution networks is increased. This is because of increasing interest to integrate energy storage devices into the power system smart grid. Integrating energy have simultaneously goal with smart grid, which are improve the reliability and satisfactory operation of power system. Battery energy storage system is as one kind of energy storage devices have some advantage can satisfy these goals. One of the main challenges in use of these devices is the optimal placement of them. In this paper, optimal placement of battery energy storage is obtained by evaluating genetic algorithm for minimizing net present value related to power losses in addition to its best operation during faced different percentage of load levels with specific electricity price for each level. In this paper in spite of most of research in the field of placement of battery energy storage, the load characteristic is considered multi-level to approach realty optimization. In addition, in this paper cost benefit of energy storage installation respect to the energy losses cost is optimized and arbitrage benefits of this installation did not considered. By considering this, yet the total benefit in presented scheme is higher than homogeneous works. To evaluate this optimization challenge IEEE-33 bus standard distribution network is chosen and to validation of efficiency of presented scheme, results are compared with previous similar works.