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 diodo anclado

Abstract

For this project it shows the basic components and design the control of a transformer of solid state (SST) of three stages with a three-phase entrance and single-phase departure, where the first stage is a rectifier, the second stage is DAB and the third one stage is an inversor. Solid state transformer complies with many functions one of the principal is the energy save getting a stability on the electrical net preventing tensions falls using what we known how renewable energy. To get SST complies its function to 100%, submits to diverses proofs which are: Sags and swells in the voltage in a determinated time, which are disturbances that reduces or increases the voltage waveform at a given time. Injection of power DC in the link of low voltage, which one we feed the low power factor LVDC to charges DC loads of energy to provide power to the grid. Maximum load and overload, where the SST works properly with the presence of overload; and finally presence of harmonics, where we inject the system load current harmonics watching the behavior of the waves form of current and voltage of entrance and output. Both the design and simulation of the model of system it is done with the help of the tools PLECS and SIMULINK of the MATLAB program.