|
|
Losses Minimizing Control of AC Drives
Džama, Igor ; Otava, Lukáš (referee) ; Václavek, Pavel (advisor)
This semestral thesis deals with issues of controll of alternating current drives of reluctance-synchronous type with interest on energy efficient controll. Thist hesis contains description of permanet magnet synchronous machine with reluctance moment and vector controll. On the model of the motor are than designed algorims tried. Algoritms are than between each other and algorithm of of controll of synchronous machine withount reluctance moment compared.
|
|
|
Digital techniques in laboratory
Harvánek, Michal ; Mego, Roman (referee) ; Frýza, Tomáš (advisor)
The result of this project are complete proposals labs to demonstrate theoretical knowledge in the field of synchronous and asynchronous counters, state machines, combinational circuits and special hazards occurring in combinational logic functions. The project utilized educational system from RC Didactic, whose main advantage is the illustrative proof of the logic circuits and a simple computer application utilized in the analysis of digital and analog circuits. Designe tasks can be involved in a two-hour time limit labs of BICT course.
|
|
|
DC/DC step-up converter with synchronous rectifier
Pospíšilík, Vojtěch ; Feiler, Zdeněk (referee) ; Červinka, Dalibor (advisor)
In the bachelor’s thesis we will deal with the design, optimization and subsequent build of the increasing DC converter with synchronous rectifier. Experimentally we find parameters for which we will make the design. Then we choose a suitable control circuit and calculate the parameters of the converter output elements, which assign specific components. After that we will design the printed circuit board, complete and we will renew the converter.
|
|
|
Design of permanent magnet synchronous motor
Pavláček, Jan ; Vítek, Ondřej (referee) ; Huzlík, Rostislav (advisor)
This thesis is bent proposal synchronic motor with permanent magnets. Here are described characteristic synchronic motors, permanent magnets and possibilites construction. This thesis is sorted from common description, feature and principle function. Here are also mentioned benefits and disadvantages synchronic motors with permanent magnets. Main volume of work is proposal synchronic motor with various modifications. Proposal is realized in program Ansys Maxwell (modulus RMxpert). Engine data are entered from program Excel, where is state full calculation input and output parameters. Value is tested from [11]. Aim those work are various modification synchronic motor and his analysis.
|
|
|
Serial communication
Novotný, Bohumil ; Šilhavý, Pavel (referee) ; Martinásek, Zdeněk (advisor)
Bachelor work is focused on the issue of a serial communication interface RS-232,USB, I2C and SPI, and also discusses the use of the laboratory module for experimental purposes. Laboratory module is designed with respect to the functional elements that will resist daily use of students. This work is detailed principles of serial communication in relation to each interface. The second part is devoted to method the module structure, functions of its individual components and functional solution output connectable to an oscilloscope and other measuring devices.
|
|
|
Control of excitation of synchronous generator
Horník, Vincenc ; Červinka, Dalibor (referee) ; Huták, Petr (advisor)
The main focus of the work is to create the optimal design of the reconstruction of synchronous generator excitation system of small hydro power plants with regard to the economical and technical performance, description of synchronous generator excitation, possible technical solutions to the reconstruction of excitation systems and their driving.
|
|
|
Determination Parameters of Synchronous Machines according to Measurement
Hrtáň, Michal ; Vaněk, Jaromír (referee) ; Hájek, Vítězslav (advisor)
This "Determination Parameters of Synchronous Machines according to Measurement" bachelor thesis describes methods of tests necessary to determine loss and efficiency of electrical machines with focus on synchronnous ones. It determines calculation procedures for evaluating the measurements. Furthermore, it deals with measuring mechanical vibrations and noise of an electrical machines. Definitions of given tests are written up with regards to contemporary norms. From above mentioned information comes a serviceable tool for automatic measurement protocol generation, which is an electronic form. The measured values are the input of the form. The output of the form is the measurement protocol with results of calculation and graphs of characteristics. For the thesis purposes, the form was filled in with acquired values from tests of a specific synchronnous machine. The related calculations for determining the machine parameters are stated.
|
|
| |
|
| |
|
|
Concept of linear motors measurement workplace
Knobloch, Jan ; Červinka, Dalibor (referee) ; Klíma, Bohumil (advisor)
Master’s thesis handles about measurement on linear motors. Acts about set of two linear machines on one rail. One is motor and second is load. Thesis paies their mathematical description, control and measurement. It’s made measurement of the linear motor load characteristic. Next measurement have to do with losses in the converter. Is chosen measuring instrument t for measurement during working cycle. During working cycle has determine power eciency of entire drive.
|
guest ::
