Diseño e implementación de un controlador digital tipo PID con pre-compensación para un Boost PFC de medio puente

  • Fredy Antonio Bolívar-Guerrero Universidad Distrital Francisco José de Caldas
  • Nelson Díaz Universidad Distrital Francisco José de Caldas
  • Jhon Fredy Bayona-Navarro Universidad ECCI

Resumen

EEste artículo presenta un nuevo método de control para un convertidor Boost con corrección del factor de potencia en configuración de medio puente (CCFP-MPE). En el control propuesto, se adiciona un lazo de pre-compensación que elimina el error en estado estacionario de fase en el control de corriente. Por lo tanto, se logra una mejora en el factor de potencia incluso en condiciones de baja carga y variaciones en el voltaje de la fuente. En el documento se detalla la metodología de diseño del circuito, que incluye, la obtención de la función de transferencia a través del modelo de circuito promedio, el diseño de los controladores que conforman el circuito, el método de eliminación del desbalance de voltaje y el diseño del pre-compensador junto con su análisis, evaluando el efecto en la estabilidad del sistema. Finalmente, se realiza un montaje experimental en el que se definen dos casos de estudio y se presentan los resultados correspondientes, con el fin de validar el controlador propuesto.

Palabras clave: boost de medio puente, corrección de factor de potencia, control PID, pre-compensador

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Citas

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Publicado
2020-01-04