Control de un compensador activo selectivo mediante un algoritmo de optimización sujeto a restricciones cuadráticas

J.C. Alfonso Gil, C. Ariño, E. Pérez, H. Beltrán

Resumen

El objetivo fundamental de este artículo es proponer un algoritmo de optimización basado en desigualdades matriciales lineales (LMIs) para la compensación selectiva del desequilibrio, el desfase y la distorsión armónica de las corrientes de carga de un sistema trifásico a cuatro hilos. Mediante el IEEE Std.1459 se determinan los términos de potencia que cuantifican cada uno de los fenómenos no eficientes a compensar (desequilibrio, desfase y distorsión) y, a continuación, se define la programación cuadrática sujeta a restricciones cuadráticas y la forma de resolver la optimización mediante LMIs. El algoritmo utiliza unos coeficientes de ponderación asociados a cada uno de los términos no eficientes para darles más o menos importancia relativa en función del criterio elegido en cada momento. Por otro lado, se realiza el diseño del condensador de corriente continua y los reguladores para el control de la tensión de dicho condensador. Así mismo, se diseñan tres tipos diferentes de reguladores para el control de corriente del SAPC y se analizan las prestaciones de cada uno de ellos. Finalmente se simulan diferentes casos de compensación selectiva, se analizan los resultados obtenidos y se exponen las conclusiones.

Palabras clave

Sistemas eléctricos de potencia; Distribución de potencia; Problemas de optimización; Control con prealimentación

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Universitat Politècnica de València     https://doi.org/10.4995/riai

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