Contribution to the knowledge of a microgrid. Smart campus

Abstract

From an analysis of electric energy consumption of different buildings of the University of Vigo, it has been designed the integration of a microgrid and its elements, distributed generation, energy storage, security and control systems and applications of a Smart Campus. Distributed generation of electricity is based on the integration of renewable energy sources, especially solar photovoltaic and wind energies, aided by the installation of a hydrogen fuel cell, which is produced out of energetic overproduction of the aforementioned sources by two electrolyzers. In order to avoid the consequences of randomness of wind and solar sources, an energy storage system has been installed. It stores hydrogen produced when overproduction takes place, in order to be able to transform it into electricity when power needs of the microgrid demand it, through a hydrogen fuel cell. Generation and energy storage will be regulated by a security and control system, which will also be responsible for the management and integration of several apps of the Smart Campus. Besides, the implementation in the microgrid of these different apps of the Smart campus, charging spots for electrical cars, parking management, and replacement of conventional lighting by an intelligent and independent system based on renewable energy will be taken into consideration in this study.