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

Abstract

In order to the technology advances and challenges related to the Smart Grids, a solid State Transformer is proposed as a Voltage transformer element for electrical distribution Systems, due to several considerations in benefits of this element compared to a conventional distribution transformer. This project is focused on the design and simulation of the control system of a three stages Solid States Transformer with single phase input and three phase output In a double bridge active DC Converter and a clamp diode multilevel AC-DC Converter. The designed is about the dimensioning of current and voltage filters and controllers for each transforming stage. Designed system operation testing is performed by simulating electrical disturbances that occur in electrical distribution systems, besides, a simulation of generation and DC loads coupling has been done. The software used to simulate was Matlab/Simulink along with the Electronic Power Systems simulation software PLECS.