DESARROLLO DE UNA ESTRATEGIA DE MODULACION BASADO EN CONTROL PREDICTIVO APLICADO EN SISTEMAS CONECTADOS A LA RED ELÉCTRICA (DEVELOPMENT OF A MODULATION STRATEGY BASED ON PREDICTIVE CONTROL APPLIED TO GRID-CONNECTED SYSTEM)
Resumen
Se presenta una estrategia de modulación basada en técnicas de control predictivo, la cual es implementada en un inversor monofásico sin transformador en modo común conectado a la red eléctrica; dicha estrategia, se conforma de un algoritmo que actúa de acuerdo con la toma de decisiones basadas en la comparación de las señales de referencia y la respuesta completa del sistema. Se pretende obtener una intensidad de corriente de salida que se encuentre con el mismo ángulo de fase con la tensión de la red ante cambios de carga resistiva y de valores de referencia. Por otra parte, se desea que esta modulación sea igualmente efectiva ante cargas reactivas no lineales.
Palabras Clave: Carga resistiva, Control predictivo, Inversor monofásico sin transformador, Respuesta completa.
Abstract
A modulation strategy based in predictive control techniques is presented, which is implemented in a Transformerless Common-Mode Current-Source Inverter Grid-Connected. The strategy is conformed by an algorithm that responds according to the decision making between reference signals and the complete response of the system. This work seeks to obtain an output signal of current in the same phase than the voltage grid which responds on resistive loads and reference values changes. Finally, it is desired to obtain same performance. Even with non-lineal reactive loads.
Keywords: Complete response, Predictive control, resistive load, Transformerless Single Phase Inverter.
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