Design and Analysis of a Multi-Port DC Microgrid to Power Flow Control in a Robotic System

This paper focuses on analyzing and designing the control system in a DC microgrid, which is responsible to provide energy for a robotic system built to inspect distribution power lines. The microgrid was projected to feed sensors, microcontrollers, and a DC motor. Also, in order to provide energy for the system, lithium-ion batteries and photovoltaic cells are employed as sources of the microgrid. With this architecture, the control system is designed to adjust the current/voltage references, to ensure the power balance in the DC microgrid. To corroborate the proposed structure, simulation results are presented under different scenarios of irradiance, temperature, load steps, and torque oscillations in the DC motor. https://doi.org/10.53316/sepoc2021.036