Novel method for sizing and placement of energy storage systems in distribution grids

State of the art. In the context of digitalization of electric grids, distribution grids remain the largest-scale and most problematic component. Technological solutions to improve the energy efficiency of these grids consist managing the voltage and transmission capacity of transmission lines using distributed generation and storage-based controls. However, to date, there is no universal method for appropriate sizing and placement of battery energy storage systems (BESS) in distribution grids that would take into account the varying daily load schedules, which is the subject matter of this paper. Materials and methods. Researchers have reviewed Russian and international scientific and technical publications on sizing and placement of BESS in distribution grids. Besides, this research uses well-known analytical methods for calculating the characteristic daily loads. Mathematical modeling was crucial to the experimental part and was done by means of PSS SINCAL. Results. The paper analyzes and presents state-of-the-art methods for sizing and placement of BESS in distribution grids. The authors have devised optimality criteria that help tailor the parametrization and placement of BESS to the application. The criteria are proven solid by mathematical modeling. Conclusions. The methodology herein presented can be used for the reconstruction and new construction of storage-enabled distribution grids of better economic efficiency and performance.