Tesis doctoral de María Isabel Arteaga Orozco
Switching dc-dc converters are important power electronics devices widely used in a variety of applications. These applications demand them answer speed, stability in front of perturbations and high efficiency. These characteristics are difficult to reach because the dc-dc power converters exhibit interesting dynamical properties. Their mathematical models are nonlinear and in some cases of nonminimun phase. Such properties have attracted the interest of this work in the search of controls that improve their dynamic performance. Therefore, the aim of this thesis was to analyze, design and implement analogical controls applied to switched mode dc-to-dc power converters. To achieve it has been applied nonlinear control due to that this considers the nature bilineal and guarantees the stability in large sign. In particular, the thesis approached siliding mode control, linearization input-output and passivity based control. also, this work applies integral reconstructors to controller dc-to-dc power converters. The integral reconstructor allows to observe a non-measurable variable using the integral of a certain relation between input and output variables. This reconstruction will substitute the non-measurable variable in the control implementation. the thesis is organized in chapters according to the following distribution: chapter 1 reviews the results reported in specialized literature that have a direct impact on the topics of the thesis, as well as, establishes the objectives of the work. Also, it introduces the mathematical models that are used for the analysis and design of closed loop system. Chapter 2 deals with the integral reconstruction and is theoretical precedent for the estimate of the variables in different topologies. It exposes in detail several examples, in the first, integral reconstruction allows to estimate the inductor current in boost converter. Also, it applies this technical to í§uk converter to estimate one of its currents. Chapter 3 contain
Datos académicos de la tesis doctoral «Control no lineal de convertidores conmutados cc/cc: analisis de prestaciones y verificacion experimental«
- Título de la tesis: Control no lineal de convertidores conmutados cc/cc: analisis de prestaciones y verificacion experimental
- Autor: María Isabel Arteaga Orozco
- Universidad: Politécnica de catalunya
- Fecha de lectura de la tesis: 25/01/2007
Dirección y tribunal
- Director de la tesis
- Ramon Leyva Grasa
- Tribunal
- Presidente del tribunal: Fossas colet dr. e.
- Luis Martinez salamero (vocal)
- isabelle Queinnec (vocal)
- francesc joan Guinjoan gispert (vocal)