A dynamic flight model of a jet trainer aircraft is developed in MATLAB-SIMULINK. Using a six degree of freedom mathematical model, non-linear simulation is used to observe the longitudinal and lateral-directional motions of the aircraft following a pilot input. The mathematical model is in state-space form and uses aircraft stability and control derivatives calculated from the aircraft geometric and aerodynamic characteristics. The simulation takes the changes in speed and altitude into consideration due to pilot input and demonstrates the non-linearity of the aircraft motion. The results from the simulation are compared with the results from flight characteristics manual of the actual aircraft to validate the mathematical model used. The simulation is carried out for a number of airspeed and altitude combinations to examine the effect of changing speed and altitude on the aircraft dynamic response.

Les travaux présentés dans cette thèse portent sur la modélisation et la simulation d'un microsystème multidisciplinaire composé de dispositifs qui sont conçus dans des domaines différents: électromécanique, électronique analogique et numérique, et électrochimique. <br />L'objectif est de proposer des prototypes virtuels d'un microsystème dit autonome. Ce microsystème permet de générer à partir de vibrations mécaniques, une énergie électrique qui sert à alimenter tout le dispositif, et le rendre électriquement indépendant.<br />Une méthode de modélisation collaborative sous l'environnement MATLAB/Simulink est proposée afin d'étudier le comportement du microsystème. Ceci est réalisé à différents niveaux de détails en se basant sur deux approches de simulations. La première permet de vérifier le comportement du prototype virtuel dans un même environnement et de le valider par simulation globale. La deuxième approche consiste à simuler le système complet en faisant appel à l'interface de cosimulation avec le langage VHDL sous ModelSim. <br />Les résultats de simulation confrontés aux mesures effectuées sur le prototype physique ont montré la fiabilité de la méthode proposée.

Les travaux présentés dans cette thèse portent sur la modélisation et la simulation d'un microsystème multidisciplinaire composé de dispositifs qui sont conçus dans des domaines différents: électromécanique, électronique analogique et numérique, et électrochimique. L'objectif est de proposer des prototypes virtuels d'un microsystème dit autonome. Ce microsystème permet de générer à partir de vibrations mécaniques, une énergie électrique qui sert à alimenter tout le dispositif, et le rendre électriquement indépendant. Une méthode de modélisation collaborative sous l'environnement MATLAB/Simulink est proposée afin d'étudier le comportement du microsystème. Ceci est réalisé à différents niveaux de détails en se basant sur deux approches de simulations. La première permet de vérifier le comportement du prototype virtuel dans un même environnement et de le valider par simulation globale. La deuxième approche consiste à simuler le système complet en faisant appel à l'interface de cosimulation avec le langage VHDL sous ModelSim. Les résultats de simulation confrontés aux mesures effectuées sur le prototype physique ont montré la fiabilité de la méthode proposée.

In this thesis, the concept of virtual reality has been elaborated in the context of games, industrial design and manufacturing. The main purpose of this master’s thesis is to create a virtual environment for games that are near to the reality and according to the human nature through aspects like better interface, simulation, lights, shadow effects and their types. The importance of these aspects regarding realistic virtual environment is complemented through the comparison between two environments i.e. desktop and CAVE on a flight simulation program.

This work builds on a semester project 2. from the winter semester of this academic year. The aim of this thesis is the design of converter using semiconductor components based on SiC technology. This converter is used in the construction of quick charger for electric vehicles. The design of this converter must be based on the requirements for compliance voltage safety. It describes the design of power components used in the construction of this facility, the determination of their losses and determines the overall efficiency of the converter. There is also proposed mathematical model of high-frequency transformer and made his simulation in Matlab-Simulink.

This master thesis describes the design of a DC/DC converter for one photovoltaic panel with a 250 W peak power. The master thesis is divided into parts dealing with detailed design of power electronics, analog circuit design, description of control MPPT algorithms and software for control circuit. The chapter with the mathematical modeling of the converter created in the Matlab Simulink was added beyond the assignment.

This diploma thesis deals with the design of the asynchronous mathematical model, and creation its model in MATLAB Simulink. And by creating different types of asynchronous motor control. At the beginning of the work there are theoretical knowledge about transformation of quantities into coordinates, which are needed for creation of mathematical model and further for machine control. Furthermore, control logarithms are created from these transformed quantities, which can be used to control the torque or engine speed. It is a constant magnetic flux control, scalar control, vector control, and ultimately direct torque control. All derived control algorithms have been tested in MATLAB Simulink. Where were simulations of investigated quantities.

The thesis focuses on the power management support of battery systems in charging mode and charging systems for electric vehicles in the LV network. The thesis includes an overview of the distribution network of the Czech Republic, means of voltage regulation and the existing legislative framework for the connection of charging systems. The thesis describes the methods of active and reactive power control depending on the voltage and frequency. The practical part focuses on the simulation of grid support at different penetration levels of BESS and EVC in MATLAB Simulink and the verification of the support function on a laboratory system. In the last part, the methods of implementing the control system for BESS and EVC operating in the LV grid are specified.

The diploma thesis deals with the simulation of induction motor control with respect to high efficiency. The theory of an induction motor is described here, with emphasis on its losses. Scalar and vector control are also described here. Vector control is optimized for higher efficiency. Subsequently, the creation of a model in the program đť‘€đť´đť‘‡ đťżđť´đťµâ’𝑆𝑖𝑚𝑢𝑙𝑖𝑛𝑠is described here, for the comparison of scalar and vector control with optimization.

The thesis is dealing with smart cards and describes the known types of side channel attacks. Smart card belongs into the group of the youngest and smartest cards. In the card body, made mostly from PVC, there is a chip inserted which contains a microprocessor.Side channel attacks are trying to use the leaking information from the physical implementation of the system while processing the cryptographic algorithm. The attacker is trying to use the leaking sensitive information because under certain circumstances it can be dependent on the input data. The theoretical part is devoted to description of smart cards, their types and their safety. It describes the classification of attacks on smart cards and includes the overview of selected cryptographic algorithms used in smart cards. It also describes selected physical and logical attacks and the most frequent side channel attacks. The thesis furthermore describes possibilities of measuring the voltage-current side channel. The practical part deals with used software and hardware. This section is devoted to the measurement of power specification of smart cards and to the analysis of processed information, using the oscilloscope and workstation with AD 622 card and Simulink development environment.