Sistema de monitoramento remoto e controle de microrrede híbrida isolada

Abstract

The search for new alternatives for energy supply in island communities has always been a motivational challenge in the scientific and societal context. The aim is a robust solution which is able to meet the demand requested in the best way as possible and with the least environmental impact. Is being presented in this work the characterization and the development of a hybrid photovoltaic microgrid, connected to an experimental load simulator that supports remote access. The microgrid consists of four photovoltaic modules of two technologies, monocrystalline and multicrystalline totaling 570 W peak power and capacity to supply loads of up to 1 kW with alternating voltage of 220 V. Is also part of the microgrid an initial storage power bank of 200 Ah with a nominal voltage of 24 V, consisting of sealed batteries linked in series / parallel, and a control panel where the Arduino controller is located and other power conversion components. To assess the microgrid in days of the storage bank is at minimum, the power line grid was used to simulate an alternative source of energy, which can be fuel cell, diesel generator, etc. Has been observed through electrical measurements obtained by the acquisition system that the microrrede is working properly. Loads connected in this microgrid are powered according to operating profile predetermined in the project, with daily consumption of 962 Wh. This profile has been built according to a number of daily hours of operation of each residence load and can be modified by the user aiming energy savings. The interruption of non-priority loads can also be performed virtually. The system is monitored and managed through an Arduino controller, and remote access done through a computer connected to the data network (internet). Such remote access allows viewing the electrical and energetic behavior of the microrrede besides enabling the use of the system for technical experiments and implementing new distance control actions. The microgrid is installed on the C02 building at UNISINOS.