El inversor dual buck de inductor simple: control de voltaje y procedimiento para obtener su modelo matemático

The single inductor dual buck inverter: voltage control and procedure to obtain mathematical model

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Luis David Patarroyo-Gutierrez
Oscar Mauricio Hernández Gómez
Fabián Rolando Jiménez López

Resumen

El presente artículo describe el procedimiento para obtener el modelo matemático para un convertidor DBI (Dual Buck Inverter) de 2 KW que puede ser usado en aplicaciones de energías renovables. Así mismo, se describen los modos de operación del inversor con las ecuaciones que modelan su comportamiento para cada uno de estos y, junto con las señales de activación de los MOSFET presentes en el inversor, se construye el modelo conmutado. Se muestra el procedimiento de linealización del modelo en un punto de operación, registrando los resultados de simulación en Matlab®/Simulink™ usando un controlador PID, realizando cambios en la carga y en el nivel de tensión DC de entrada para el modelo propuesto y para el circuito inversor haciendo uso de elementos discretos. La distorsión armónica total en la señal de tensión de salida es inferior al 0,73%, cumpliendo con el estándar IEEE 519.

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Referencias (VER)

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