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Design and simulation of interior permanent magnet synchronous machine
Veselý, Petr ; Vlach, Radek (referee) ; Ondrůšek, Čestmír (advisor)
The master’s thesis deals with the design of a synchronous motor with embedded magnets. First of all, the general theory of synchronous motor, which is focused on field-weakening drive, is described. Then a 6-pole and a 8-pole version of the motor with embded magnet, which has 65 kW and 3000 rpm is complexly designed. Motors are compared with each other and with a motor with surface magnets, that was also designed in this work. Finally, all motors are compared with a mafufactured and measured motor.
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Sensorless control of AC motors on STM32 platform
Soviš, Jiří ; Veselý, Libor (referee) ; Pohl, Lukáš (advisor)
The thesis is focused on the issue of sensorless vector control of a synchronous motor with permanent magnets in the low-speed range. In the first part, there is a brief description of the synchronous motor and the necessary transformations for the application of vector control. This is followed by the overview of sensorless methods for position estimation by injecting a high-frequency harmonic signal. The practical part is devoted to the implementation of a control algorithm to develop kit STM32NUCLEO-L476RG, which is preceded by the identification of all engine parameters. As part of the implementation, a structure including current, speed and position control was designed. The functionality and robustness of the settings have been successfully tested due to the different inertia and load.
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Linear motor modeling and identification
Cimburek, Václav ; Veselý, Libor (referee) ; Václavek, Pavel (advisor)
This bachelor’s thesis deals with the creation of a model of a synchronous linear motor with permanent magnets, parameter identification and model visualization. The model includes variable inductances of d and q windings and variable motor force constant. A cascade control using P and PI controllers and dynamic decoupling is implemented to control the model. The whole system is simulated in the Simulink environment. In conclusion are evaluated the factors that may cause inaccuracies and improvements that could be done.
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Mathematical model of synchronous motor width permanent magnet
Fajkus, Petr ; Klíma, Bohumil (referee) ; Huták, Petr (advisor)
The work is focused on the design of synchronous motor control with field weakening possibility. At present synchronous motors used in many applications. Often is used synchronous motor with permanent magnets. This type of motor may have different transverse and axial inductance. In most cases it is desirable to design the engine using a computer model. Therefore the synchronous motor described mathematically in order to create the model of motor. At work is also crated model of synchronous motor control. The control is designed for the highest possible speed range. Therefore, the motor control is consist of two parts. Speed is controlled by voltage in the first part. In the second part speed is controlled by field weakening. Everything is created and simulated in a computer program MATLAB-SIMULINK.
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Conrol of synchronous drives
Mrtvý, Bohuslav ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
The document describe servo drive by B&R and the control algorithms with vector control. There is also mathematic model of synchronous motor, design of control the system of two connected motor and implementation these algorithms in to the PLC and Acopos. The Master’s Thesis contains confrontation of results of real system and ideal model.
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AC Drives Modeling in Modelica
Lalović, Goran ; Otava, Lukáš (referee) ; Václavek, Pavel (advisor)
Tato závěrečná bakalářská práce se zabývá s postupy fyzikálního modelování a simulaci střídavých pohonů v jazyce Modelica a prostředí OpenModelica. Za prvé, zde se nachází přehled všeobecných vlastností modelů pro základní typy střídavých pohonů, asynchronní a synchronní stroje a příslušných regulačních struktur v prostředí OpenModelica. Poté se bakalářská práce zaměřuje na srovnání chování vytvořených modelů s dostupnými modely v prostředí Matlab-Simulink. Cílem bakalářské práce bylo vyexportovat FMU, přeložit, odsimulovat a prácovat s modely z prostředí OpenModelica do Matlab-Simulink. Teoretický popis základních typů střídavých pohonů se nachází na prvních dvou kapitolách. Ve třetí kapitole se bakalářská práce zabývá srovnáváním modelů vytvořených v OpenModelica a Matlab-Simulink, a porovnává výsledky simulace. Na konci, jsou uvedeny základní informace o standardu FMI, FMU a mluví se o překadu modely z prostřdí OpenModelica, pomocí JModelica-y do Matlab-Simulink-u.
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Efficiency map of synchronous machine
Gargulák, Jiří ; Marada, Tomáš (referee) ; Pruša, Radomír (advisor)
Subject of this bachelor thesis is application of interpolation on efficiency maps of synchronous servo-engines. Nearest neighbor interpolation, inverse distance weighting and bilinear interpolation is used. Another part of this thesis is measuring on drive of one axis on machine tool, which is made out of frequency convertor, synchronous engine and a ball screw. Also another subject of this thesis is research of power losses in synchronous engine, frequency convertor and ball screw.
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Design of synchronous spoke motor
Kopecký, Jan ; Bulín, Tomáš (referee) ; Knebl, Ladislav (advisor)
This thesis is focused mainly on the theoretical research of permanent magnet synchronous motors. In addition, various methods of designing the motor‘s magnetic circuit are discussed and their advantages and disadvantages are compared. The reluctance network method is analyzed more thorough, because this method is used for motor designing process. In the last part the results obtained by reluctance network are compared with the results evaluated by finite element method.
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PMSM Drive Sensorless Control
Graf, Miroslav ; Blaha, Petr (referee) ; Václavek, Pavel (advisor)
Bachelor's thesis "PMSM Drive Sensorless Control" concerns about stage reconstructors by PMSM drive control. It describes Model Reference Adaptive System and Kalman filter. Both stage reconstructor are practically implemented at microprocessor and using the method "target in the loop" the functionality of both reconstructors is verified.
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