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Design of unit for Power HIL simulation of DC motor
Chalupa, Jan ; Maršík, Jiří (referee) ; Grepl, Robert (advisor)
This thesis deals with analysis and implementation of Power-HIL system that is designed to simulate real DC motor with comutator and permanent magnets. For problem analysis were used simulations of real components in Matlab / Simulink. The electronic parts of system were simulated with using the SimElectronic library. Idividual hardware components were designed according to simulation results. The outcome of this thesis is a power electronic simulator of real DC motor, which is implemented on dSPACE platform. The system allows software to setup parameters and behavior of simulated motor. The final system can be used for testing DC motor ECU (electronic control units).
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Design of embedded system for control of educational model of rotary pendulum
Jajtner, Jan ; Chalupa, Jan (referee) ; Grepl, Robert (advisor)
The basic aim of this work is to improve existing model of rotational inverted pendulum by adding new mechanical features, implement the control algorithm to dsPIC microcontroller and develop related control electronics thus extending the functionality of current model while making it more compact. The work contains derivation of dynamic equations both by means of analytical methods and multi-body formalism of SimMechanics. These are used to design a state controller stabilizing the pendulum in inverse position. In addition, parameters of the system are being estimated experimentally. Swing-up controller is developed to drive the pendulum to unstable position. Various state estimators are added to controller to improve the control process while comparing their overall performance. The last point is devoted to development of superior state-automaton designed to switch between different regulating modes including fail-detection algorithms providing smooth operation of the model.
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Design and fabrication of the module used for the low voltage electric motors
Ludva, Stanislav ; Chalupa, Jan (referee) ; Šulc, Dalibor (advisor)
The aim of this diploma thesis is to design and implement a universal driver unit designed to control electric motors of small voltages – electronically commutated, DC and stepper. This involves creating topology and selecting appropriate components based on the required parameters. It also includes the manufacture of printed circuit board (PCB), soldering of the components and programming of the necessary functions. Thesis contains the analysis of three selected types of motors – the principle of operation, wiring and control. Testing of the control unit was performed at the end of the work.
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Design of device for voltage monitoring in the electrical network
Ženčár, Pavol ; Chalupa, Jan (referee) ; Bastl, Michal (advisor)
This thesis is about development of a device for monitoring and logging RMS value of voltage in main electrical network. Thesis consists of choosing the right electrical components, prototype testing , designing a printed cirquit board (PCB) and making a program code. We can divide the assigment to 3 major tasks , which are measured values data logging on SD card, printing of measured values on web server and transfering measured values through USB port.
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Testbed for wireless power transfer system
Holas, Jiří ; Musil, Filip (referee) ; Chalupa, Jan (advisor)
The purpose of this work is design and making experimental device. It will be instrumental towards measurement effectivity wireless power transfer electric energy using help of inductive link. This work contains information about main factors, which influencing this transfer. Further I describe an operation design and each parts. These parts are mechanic or electric. In conclusion this work is functionality testing experimental device.
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Desing of measuring of electric machine rotor temperatue
Chalupa, Jan ; Krejčí, Petr (referee) ; Vlach, Radek (advisor)
This bachelor thesis is focused on temperature measurement issues of rotating parts of electrical devices. Thesis includes proposition and implementation of hardware solution, which enables multi-channel temperature measurements using PT100 sensors. Measured temperature is transmitted into the user’s PC. Thesis also includes user software solution for Windows platforms. Hardware requirements are low. System is primarily determined for temperature test of electrical devices. It can be also used for long-term monitoring of devices in operating state. Transmitter was designed with following considerations. Minimal size, low consumption, mechanical and thermal endurance. These demands require comprehensive approach to the whole system solution.
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Design of control unit for two-wheeled self-balancing vehicle
Bastl, Michal ; Klimeš, David (referee) ; Chalupa, Jan (advisor)
This diploma thesis is a part of a project of two students. The aim of the project is to design safer electronics for the unstable balancing vehicle HUMMER and implementation of advanced diagnostics and fault detection. In the first part of the project we analysed the original vehicle using the FMEA analyse and created a new concept of the vehicle. The second part of the project describes a new hardware. I designed and tested the power electronics, control unit and supplies. The outputs of the work are prototypes which allow testing a new concept.
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Automatic monitoring of fluid density
Bebej, Rastislav ; Chalupa, Jan (referee) ; Krejčí, Petr (advisor)
This thesis focuses on creating a device capable of monitoring the density of liquids during the fermentation process. The thesis includes the selection of a suitable principle for the measurement of the density of liquids, including the temperature compensation, the selection of suitable components and the design of schematics. Furthermore, the thesis deals with the design of a printed circuit board and wireless data transmission to a computer via Wi-Fi.
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Semi-solid alloys testing device
Valíček, Václav ; Bastl, Michal (referee) ; Chalupa, Jan (advisor)
This thesis deals with design of semi-sollid alloy testing device. In the beginning, there are briefly introduced possibilities of semi-solid alloy exporation followed by analysis of temperature measurement options, torque measurement options and control of the thermal system. There was build development version of construction and electronics based on results of analysis. The outcomes of this thesis are: design of printed circuit board based on electronics prototype connection, production of mechanical parts for device and realization of user interface in form of touch screen.
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Analog front-end for piezoelectric sensor
Wich, Petr ; Chalupa, Jan (referee) ; Rubeš, Ondřej (advisor)
The purpose of the thesis was to describe and compare the properties of analog front end for piezoelectric sensor circuits. First, the basic circuit was described, then the design and implementation of the current-to-voltage converter, the charge amplifier and the circuit for voltage sensors on the parallel resistor. There was construct measuring system for measurement of the circuits. At last was made measurement of the created circuits, results were compared with each other, and their properties described.
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