DISEÑO DE CONVERTIDOR DE CD/CD BOOST OPERANDO EN MODO RED PARA UN SGF PARTICULAR (DC/DC BOOST CONVERTER DESIGN OPERATING IN GRID MODE FOR A PARTICULAR PGS)

Resumen Este trabajo presenta el diseño de un convertidor de CD/CD Boost y la simulación de este en un sistema de generación fotovoltaico (SGF) particular operando en modo red. Para controlar este convertidor, se implementa un control con lazo de realimentación en corriente y un algoritmo para el seguimiento del máximo punto de potencia (MPPT) mediante la técnica de perturbar y observar(P&O). El objetivo de este modo es inyectar potencia activa a la red eléctrica local en función de la capacidad de generación del SGF. El diseño de control para el esquema propuesto se realiza a través de sisotool de MATLAB® en la que se sintoniza y simulan los controladores, posteriormente se prueba el esquema de control propuesto mediante el software PSIM® versión 9.1, en el que se simula el SGF propuesto y se observa el rendimiento del convertidor Boost bajo estas condiciones. Palabras Clave: Convertidor Boost, MATLAB, MPPT; Modo red, Generación fotovoltaica. Abstract This work presents the design of a DC / DC Boost converter and its simulation in a particular photovoltaic generation system (PGS) operating in grid mode. To control this converter, a current feedback loop control and an algorithm for the maximum power point tracking (MPPT) are implemented using the perturb and observe (P&O) technique. The objective of this mode is to inject active power into the local electricity grid based on the generation capacity of the PGS. The control design for the proposed scheme is carried out through MATLAB® sisotool in which the controllers are tuned and simulated, then the proposed control scheme is tested using the PSIM® version 9.1 software, in which the proposed SGF is simulated and the performance of the Boost converter is observed under these conditions Keywords: Boost Converter, MATLAB, MPPT, Grid mode, photovoltaic generation

Sünter-Clare Algorithm Implementation in a 3x3 Matrix Converter.

[EN] This paper presents the direct and easy way to implement digitally a Sünter-Clare modulation algorithm for a 7.5 KVA, three-wires, matrix converter. This modulation algorithm is used to calculate 3x3 matrix converter duty cycles to produce constant output voltage and frequency signals. The Sünter-Clare modulation algorithm recalculates switching patterns and switching times every sampling period in order to compensate the input voltage and frequency variations. This algorithm is defined in terms of the three-phase input and the output reference voltages at each sampling instant and is convenient for closed loop operations when the input voltage and frequency are variable in time as in the variable speed wind generation system. The experimental control setup is comprised of a field programmable gate array board, a digital signal processor and a graphics interface board.[ES] En este trabajo se presenta la implementación digital del algoritmo de modulación de Sünter-Clare, para un convertidor matricial de tres hilos de 7.5 kVA. Este algoritmo es usado para calcular los ciclos de trabajo en un convertidor matricial 3x3, con lo que se generan tensiones de salida con amplitud y frecuencia constantes. El algoritmo de modulación de Sünter-Clare recalcula los tiempos y trayectorias de conmutación cada período de muestreo, con el objetivo de compensar las variaciones de amplitud y de frecuencia de las tensiones de entrada. Este algoritmo se ejecuta en cada muestreo y está en función de la tensión trifásica de entrada y de la tensión de referencia de salida, resultando adecuado para controles en lazo cerrado, cuando las señales de amplitud y de frecuencia de las tensiones de entrada son variables en el tiempo, como ocurre en los sistemas de generación de energía eléctrica a velocidad variable, que utilizan la energía del viento como fuente primaria de energía. El sistema de control para el trabajo experimental, además de la tarjeta del convertidor matricial, está compuesto por una tarjeta de arreglos de compuertas programable (FPGA) y por un procesador digital de señales (DSP) con una tarjeta de interfaz gráfica.Los autores agradecen al Instituto Politécnico Nacional por el apoyo y en la financiación del proyecto que permitió la adquisición del equipamiento necesario para el laboratorio de Electrónica de Potencia y de Control de Máquinas Eléctricas.Ortiz Colín, EA.; Hernández González, IH.; Rodríguez Rivas, JJ.; Carranza Castillo, Ó.; Ortega González, R.; Morales Caporal, R. (2017). Implementación del Algoritmo Sünter-Clare en un Convertidor Matricial 3x3. Revista Iberoamericana de Automática e Informática industrial. 14(4):446-454. https://doi.org/10.1016/j.riai.2017.06.002OJS446454144Altun, H., Sünter, S., 2003. Matrix converter induction motor drives: modeling, simulation and control. 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