Control digital de un sistema de generación eléctrica solar monofásico con inyección a red
The present thesis focuses on the development of a digital control system for a voltaje inverter for use in a grid connected power generation system with photovoltaic solar energy (GCPVS, from English, Grid Connected Photo Voltaic System). Currently, solar energy generation systems use photovoltaic...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | español |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/1775 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1775 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Inspec/Renewable energy info:eu-repo/classification/Inspec/FPGA info:eu-repo/classification/Inspec/Investors info:eu-repo/classification/Inspec/Inverter control info:eu-repo/classification/Inspec/Predictive control info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Sumario: | The present thesis focuses on the development of a digital control system for a voltaje inverter for use in a grid connected power generation system with photovoltaic solar energy (GCPVS, from English, Grid Connected Photo Voltaic System). Currently, solar energy generation systems use photovoltaic panels that convert sunlight directly into electricity. However, there are factors that make the use of power converters necessary to increase the use of solar energy incident on the photovoltaic panels, in addition to requiring the energy generated in direct current (DC) to have be to convert into alternating current (CA) so that it can be injected into the electrical grid, all this to raise the efficiency of the system. Photovoltaic systems are made by panels arrays in series and in parallel , these panels are built with solar cells that allow converts light in the energy through the photoelectric effect, however due to this nature, the level of energy depends on the level of the incident radiation in addition to the temperature of the operation, due this the energy can be changed both in the current and in the voltage, this makes necessary the use of power converters with control of maximum power point tracking (MPPT), which allows the system to operate always at the point where it generates the maximum energy. In addition to the problem presented by the change in voltage levels, the photovoltaic array produces energy in direct current so it is necessary to transform this in alternating current to be injected into the electrical grid, to achieve this a stage is necessary that allows this change, but in addition to achieving this change, it is necessary that the system injects the maximum energy at a frequency specified by the electrical network, in addition to reducing the harmonic distortion. The control of the injection of energy into the grid in photovoltaic systems is based on the development of three-phase systems, these systems variant time are more difficult to control than systems that are invariant in time, so the use of transformation techniques is necessary, the variant time system can be modeled as time invariant systems in the fundamental frequency after transformations and thus be easier to deal with, however, this theory cannot be directly applied in single-phase systems without modification. |
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