Método para alocação e operação ótima de baterias em sistemas de distribuição com restrições de tensão e redução das perdas

Abstract

The present work discusses the use of energy storage systems connected to the distribution system. Battery energy storage systems are able to inject or absorb power of the distribution system at crucial moments, increasing their efficient. It is proposed a methodology for optimal allocation of battery energy storage system with operation management optimized. The management optimal includes specifying the storage system charge and discharge modes to achieve certain purposes that in this case is to decrease the total energy losses of the distribution system, respecting the recommended voltage limits. Thus the battery energy storage system in the distribution system can be a viable economically option, according to a specified plannig horizon. In this work the batteries are modeled portraying their operating appropriately, covering the temporal dependency questions their operation modes. Besides the battery charge and discharge must happen according the load and generation variations of the system in which it is connected. It was used the Quasi-Static Time-Series method from OpenDSS software, to treat the temporal questions. The optimization is realized through the Genetic Algorithm. The studied cases consider batteries with different behaviors, demonstrating the applicability of the proposed methodology.