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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Implementação e análise das técnicas de controle por modos deslizantes e preditivo não linear / Implementation and analysis of control techniques by sliding modes and nonlinear predictive

Couto, Luiz Alberto do 31 August 2018 (has links)
Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2018-11-14T12:32:26Z No. of bitstreams: 2 Dissertação - Luiz Alberto do Couto - 2018.pdf: 3388759 bytes, checksum: 70a8308aa7f38be796baef2403a183c3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-11-14T13:00:55Z (GMT) No. of bitstreams: 2 Dissertação - Luiz Alberto do Couto - 2018.pdf: 3388759 bytes, checksum: 70a8308aa7f38be796baef2403a183c3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-11-14T13:00:55Z (GMT). No. of bitstreams: 2 Dissertação - Luiz Alberto do Couto - 2018.pdf: 3388759 bytes, checksum: 70a8308aa7f38be796baef2403a183c3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-08-31 / This work presents an implementation and analysis of traction control and linear trepidation techniques, driven by a six - pulse fully controlled three - phase rectifier. The methodology addresses the construction of real reality, modeling by method of system identification, design and tuning of optimization processes. The comparisons between the techniques are their characteristics and their performances when performing statistics, verifying the robustness of the series in non-linear systems. Both techniques perform satisfactory in the execution of the control, correlating with the. / Este trabalho apresenta a implementação e análise das técnicas de controle por modos deslizantes e preditivo não linear, aplicados no controle de velocidade de motor de corrente contínua de excitação independente, acionado por retificador trifásico totalmente controlado de seis pulsos. A metodologia aborda a construção da bancada real, modelagem por método de identificação de sistemas, projeto e sintonia dos controladores utilizando processo de otimização. São realizadas comparações entre as referidas técnicas destacando suas características e desempenhos quando executadas em condições semelhantes, verificando a robustez das mesmas atuando em sistemas não lineares. Ambas as técnicas apresentam desempenho satisfatório na execução do controle, dependendo portanto, da análise do sistema a ser implementado para a determinação do método apropriado.
2

Třífázový střídač pro napájení vysokootáčkového asynchronního motoru / Three-phase converter for high-speed induction motor

Šandera, Tomáš January 2017 (has links)
The master’s thesis deals with design and realization of three-phase inverter for experimental high speed asynchronous motor with a mechanical power of 6 kW. The thesis deals with the design of the individual components of the DC link. The thesis describes the selection of suitable capacitors in the DC link. There is also a complete simulation of the inverter in the Matlab Simulink program. Part of the thesis is also the design and realization of printed circuit boards of this inverter.
3

Řešení rozložení magnetického pole ve stejnosměrném stroji / Solution magnetic field distribution in DC machine

Hájek, Jan January 2012 (has links)
This thesis deals with distribution of magnetic fields in the DC machine. Part of this thesis is the introduction of DC machines, principles of operation and distribution of DC machines. There is also discussed electrically commutated motors. The thesis demonstrates the types of permanent magnets and their properties. Then there is an analysis of the magnetic field electrically commutated motor Atas Nachod in the Ansoft Maxwell. Using Ansoft Simplorer, switching is carried out of the engine. Another part of this work is the analysisthe magnetic field electrically commutated motor Atas Nachod for three types of slot of the stator of the engine. Here it is seen what impact the change has slot on the distribution of magnetic field in the EC motor. Finally, training is carried out measurements of electrically commutated motor BOYANG BY92BL48-4000-2200.
4

Programovn­ mikrokontrol©r c2000 v programu MATLAB/Simulink / MATLAB/Simulink Model Based Design Using C2000 Microcontrollers

oupal, Ondej January 2020 (has links)
The aim of this thesis is to explore possibilities of rapid control prototyping, describe the concept of creating the software application in MATLAB/Simulink environment with use for development kit Texas instruments LaunchPad and create an application for DC and induction motor control in this environment. This work describes the application for unipolar/bipolar control H-Bridge of power converter for DC motor, measurement of output currents, speed and its displaying in real time using serial control interface. This thesis also desribes scalar and vector control of induction motor. All software applications with measurements are created in MATLAB/Simulink and attached to the thesis.
5

Analýza a inovace elektrických motorků pro automobily / Automotive Electric Motors Analysis and Innovation

Nejedlý, Vladislav January 2010 (has links)
In this thesis analysis and inovation of electric machines for cars is discused. There are described principles of basics DC and AC electric machines. In detail this thesis deals with small electric machines used in cars. At least, electro motor for wiper is investigated and possibilities of its inovation in different ways are also mantioned.

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