Controle automático da geração em sistemas elétricos com geração fotovoltaica.

Abstract

The use of electrical energy is indispensable in people's daily lives since it is not possible to sustain technologies such as cell phones, computers, industrial and medical equipment, without electricity. Against with population growth and the advancement of technologies, a greater demand for energy is required from the electrical system. The constant search for sustainable development with the use of clean and renewable energy sources is growing throughout the National Interconnected System. However, the population is susceptible to certain problems that may arise from the integration of new energy sources in the system. The integration of large photovoltaic power plants/parks in the electrical system has raised concerns when thinking about its effects related to load-frequency control. Therefore, the focus of this work is to identify the impacts that the integration of solar energy can cause in the electric power system, in scenarios that analyze the frequency and power generated in the control areas. The simulations were performed in the frequency domain in the form of a block diagram using the Simulink environment of MATLAB. For this study, it is necessary to understand the automatic control of generation that is responsible for restoring the system frequency to it original value, in addition to the elements that make up the load-frequency control system. The results obtained showed that in scenarios with pv generation in control areas that have a load, it initially meets the region's demand. On the other hand, when pv is inserted in the control areas that have no load, it was shown that the system is not able to receive this power.