Diseño y simulación del control de un transformador de estado sólido de tres etapas con entrada trifásica y salida monofásica basado en un convertidor dc-dc de doble puente activo y un convertidor ac-dc multinivel de puentes en cascada

Abstract

The present project is designed and simulated driver transformer solid state , taking into account each of the stages , ranging from the connection with the network load to reach the user, without losing sight of the different problems power quality presented , such as voltage Sag’s and Swell’s and it is these which try to suppress in order to provide better electrical service. Beginning with a brief description of the problems in electrical distribution networks, this project shows the different formulas for sizing of capacitors and inductors for use in Solid State Transformer (SST). With the calculated elements necessary to design controllers voltage and current for each stage. Control techniques used in this work are: the K factor and the inclusion of resonant poles. Finally SST tests are performed. The software used for design and simulation of this project is Matlab with Simulink and Plecs libraries.