AGRA, GLESTON CARNEIRO.; http://lattes.cnpq.br/9142859463180327; AGRA, Glêston Carneiro.
Resumo:
Through the possibility of converting local electrical energy, it is possible that
consumers have more than one source to supply their demand at the same time.
Switching between sources and loads is expected to require a
supervision and control that maintains continuity of service, avoids reconnections
abrupt and still respect the priority of loads. In this work, we propose a
supervision architecture for control for switching sources and loads, being
used as an example a photovoltaic system (SFV) connected to the electrical grid
public. Switching from sources to loads is carried out by
transfers, which operate according to the priority of loads and must carry out the
turning on or off, observing the energy supply, also avoiding the
payment of fines for exceeding demand. In the application example,
considered on grid and off grid photovoltaic systems, and the use of each
depends on the application and/or availability of energy resources. It was also
considered the presence of an energy storage system that feeds a
group of essential loads, at specific times of the day, including peak hours
and/or as an emergency system, in the event of a power failure in the
dealership. Dynamic and logical analyzes were performed via simulation
computational, to verify the fulfillment of the requirements and feasibility of the module
monitoring, control and command of the switches. It was observed that the architecture
proposal meets the requirements, maintaining continuity in service and, when
necessary, prioritizing the supply of some loads to the detriment of others.