Influence of Decentralization of Energy Storage Systems with Batteries in Medium Voltage Distribution Networks

João Paulo Assunção de Souza¹; Wallace do Couto Boaventura¹

¹ Universidade Federal de Minas Gerais

Resumo

With the popularization of distributed photovoltaic generation, some problems such as voltage elevation and system instability due to the phenomenon of the "duck curve" began to appear and with this, the battery storage system (SAEB) was started to be used to integrate the generation of renewable energies to the system. In this context, this work studies the use of SAEBs, evaluating the influence that the quantity and the location of such equipment have on voltage regulation, integration of distributed generation and network losses. The methodology used consists in the design of the storage capacity considering the losses of the model, in obtaining the control curve of charge and discharge of the batteries using the curves of photovoltaic and demand generation as well as in the allocation of SAEBs in the network. The evaluation of the effect of the decentralization of SAEBs is done in the IEEE 123 bus test heater using OpenDSS to calculate the power flow.

Palavras-chave: Energy Storage Systems with Batteries; Distribution Systems; Power Quality