Alocação ótima de baterias em sistemas de distribuição considerando a vida útil e redução de perdas

Abstract

In order to improve aspects related to the efficiency of distribution systems, the use of energy storage devices has proven to be a viable alternative and with a diversified application. The energy storage systems, formed by batteries, allow their operation to be managed, thus specifying loading and unloading moments according to objectives of interest. In this work, a method for optimized operation and allocation of batteries in the electrical power system is developed with the objective of reducing electrical energy losses also considering the impact that the operation management can have on the battery life. Analyzes are carried out to show the extent to which the use of batteries pays to reduce losses and at what point the device is no longer interesting for this purpose, observing the behavior of variables present in the problem. For modeling battery storage systems, the temporal coupling characteristic of the behavior of these devices is considered. Its performance possibilities depend on previous operations. To model these questions, the Quasi-Static Time Series technique associated with the power flow solution was used. The power flow problem was solved using OpenDSS software. The allocation as well as the optimized operation of the storage systems was carried out through Genetic Algorithms. The method was tested for different distribution systems in order to demonstrate its applicability.