Calidad de la energía eléctrica en edificaciones con generación solar fotovoltaica
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Cárdenas Leal, Johan Manuel | 2023
One of the various solutions worldwide that contribute to the reduction of CO2 emissions as a contribution to climate change and an alternative source of electricity generation, are photovoltaic systems. These systems produce electrical energy when a solar cell absorbs photons from the sun's rays and later transmits kinetic energy to the electrons to move inside the panel and produce electrical current. This phenomenon is known as the photoelectric effect. These systems include investment electronic equipment responsible for receiving the direct current generated through photovoltaic modules and transforming it into alternating current, which is subsequently injected into the electrical system, either for generation, self-consumption or for energy storage with a battery system. Today, the generation of electrical energy with photovoltaic systems is a reality and every day they are integrated into our society in a massive way, however, due to the manufacturing components of the inverters, these systems inject a large content of harmonics into the network. For example, if said system is integrated into an educational building that is particularly made up of laboratory equipment assembled with power electronics and that contributes a high harmonic content to the electrical distribution system to which they are connected, they can generate negative effects. in the quality of the energy, which in a certain way is reflected in the malfunctioning of the equipment and in an economic impact due to the increase in corrective maintenance. For the harmonic analysis of an electrical distribution system with photovoltaic solar generation, it is necessary to establish an adaptive methodology that allows us to characterize, identify and propose a general solution for the mitigation of the phenomena that produce harmonics. As a calculation tool, the Python programming language is implemented, which allows us to recreate scenarios with high computational demands on the data obtained from the measurements of electrical parameters at the common point of connection between the photovoltaic system and the grid of the low-voltage electrical distribution system. voltage of Block I of the Julio Garavito Colombian School of Engineering University.
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