Control Predictivo de Estados Finitos para un Convertidor Bidireccional con Diodos de Enclavamiento

Santiago A. Verne, María I. Valla

Resumen

En este trabajo se presenta un convertidor multinivel en conexión Espalda contra Espalda (EcE) basado en la topología con Diodos de Enclavamiento. Dicha configuración permite la conexión de dos sistemas trifásicos de media tensión sin el uso de transformadores de acoplamiento, permitiendo el control total del flujo de potencia con baja distorsión de corriente en ambos terminales del sistema. El control de ambos convertidores, junto con el de balance del bus de continua se efectúa mediante una estrategia de Control Predictivo de Estados Finitos. Se analiza el sistema de conversión para distintos índices de modulación, dirección de flujo de potencia y la aplicación de dos estrategias de modulación diferentes en ambos convertidores. Se presentan resultados que permiten concluir la viabilidad de aplicación del sistema para la solución de problemas relacionados con la transmisión de potencia y accionamientos de motores en niveles de media tensión sin la utilización de transformadores elevadores.

Palabras clave

Control Predictivo de Estados Finitos (FCS-MPC); Convertidor Multinivel con Diodos de Enclavamiento; Balance del Bus de Continua; Conexión Back to Back

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