Impacts of Uncoordinated Control Strategies of Batteries on Technical Losses of a Radial Feeder

Batteries are one solution to address the impacts caused by the integration of photovoltaic distributed generation on distribution networks. This paper aims to analyze the impacts of three uncoordinated control strategies of distributed batteries on technical losses evaluated by statistical analysis. The first strategy compares demand with generation. The second one uses the average annual demand as a reference. The third strategy controls the battery based on the voltage level of the bus connected to it. This paper stands out by three main points: evaluating uncoordinated control strategies, performing statistical analysis to consider random features, and observing at the losses when the purpose of control strategies is the voltage regulation. The results showed that the batteries controlled by uncoordinated strategies could increase losses even when they were programmed to improve the voltage profile. This points out the importance of an overview of the distribution system when integrating batteries into it.