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Design, optimization and full load circuit simulation of the surface mounted permanent magnet machine
Bláha, Martin ; Ondrůšek, Čestmír (referee) ; Kurfűrst, Jiří (advisor)
This thesis deals with the possibility of using the finite elements method for the analysing of synchronous permanent magnets machines. The aim of this work is to discuss the possibility of the machine design more effectively with using the finite elements method and Maxwell software for the simulations. On the created parametric model, simulations were performed according to master thesis assignment. The aim of this work is to determine induced voltage, iron losses, machine inductances and make a permanent magnets demagnetization analysis. From simulations results the machine efficiency is calculated. The parametric model was used for the optimization of selected parameters. From results of optimization new dimensions of permanent magnets was obtained. Machine efficiency was increased by new permanent magnet material and optimized design.
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Design of Electromagnetic Part of Vibration Power Generator for Low Frequency
Konrád, Libor ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
The project deals with contemporary position of vibratory generators based on electromagnetic principle and optimal constructional solving of electromagnetic part of generator. Practical part is searching for suitable solving of construction of electromagnetic part of vibratory generator in the light of required power. Solving is brought to effect by the simulator simulation. Vibratory generator works in frequency range 17Hz. Final suggestion has to answer requirements of observance of frequency ranges, minimal power and simple production. Project includes simulation model as well as proposal of final form of modified generator.
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Magnetic field analysis with finite element method and magnetic sensor
Volf, Tomáš ; Kurfűrst, Jiří (referee) ; Skalka, Miroslav (advisor)
The magnetic field analysis by MKP and magnetic probe project deals with magnetic field analysis of asynchronous machine cross section. This analysis is written in detail along with the necessary theory of asynchronous machine and the ANSYS program. The magnetic field of selected machine is measured by magnetic probe and results are compared with calculation. The next part of thesis is draft of device for the magnetic field analysis.
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Design of permanent magnet generator
Štencl, Michal ; Huzlík, Rostislav (referee) ; Ondrůšek, Čestmír (advisor)
This thesis deals with electromagnetic design of synchronous generator with permanent magnets. The aim of this work is verify already made prototype of generator, which after testing has problem with warming of permanent magnets and winding. The work includes electromagnetic design of the machine, simulation through RMxprt and comparison with prototype of generator. The thesis includes also simulations operating conditions through Maxwell 2D and Maxwell 3D.
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Design and analysis of PMSM with concentrated winding
Macek, Pavel ; Ondrůšek, Čestmír (referee) ; Vítek, Ondřej (advisor)
Permanent magnet synchronous machine (PMSM) are widely used in many industrial applications. This thesis starts with familiarization with the properties and structure of each type of synchronous machines with permanent magnets. Subsequently there are described properties and possible division of AC winding types. Afterward analytical designs of four machines with two different types of winding were realized. These designs were compared by means of simulations using the RMxprt program and their properties were subsequently verified by method of finite element using the Maxwell 2D program. Evaluation and comparison in terms of utility properties for all designs of machines were performed at the conclusion of this thesis.
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Simulation of toroid coils in Ansoft Maxwell 3D
Daněk, Michal ; Pfeifer, Václav (referee) ; Hanák, Pavel (advisor)
The master thesis is focused on the simulation of the toroid coils in Ansoft Maxwell 3D software, which uses finite element method for electromagnetic field simulation. Firstly the process creation of the geometric model toroid coil with seventy-five threaded is presented. It is necessary to debug this model and prepare it for the mesh generation. Physical properties are assign to this model and it gives rise to the physical model. We will set boundaries, excitation current, core material, winding material and the parameters for the mesh generations. New material Kashke K4000 will be created in the materials library and subsequently we will define its BH curve on the basis of datasheet. Analysis is made in two modes. Direct currents (7,5A; 10A; 15A; 20A; 25A) and (non)linear materials are used in magnetostatic solution. Toroid coil is excited by current pulse in transient solution. In Ansoft Maxwell Circuit editor a source which generates current pulse will be created. This excitation will be assigned to the toroid coil as an extern source through a terminal. Core material is linear in the case of transient analysis, because Ansoft Maxwell 3D doesn´t allow to use nonlinear material in this solution. Settings are different in transient and in magnetostatic analysis. End time and time step are entered to solve this task in transient analysis. Time points are entered too. Flux density and electromagnetic field strength are calculated in these time points and later it will be possible to view the results. Calculated fields are shown as the pictures in this thesis. The procedure how to use a field calculator in the postprocessing is given as well. The achievements are summarized in the conclusion.
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Analysis of the stator and rotor pack termination effect on the synchronous machine by FEM
Michailidis, Petr ; Valenta, Jiří (referee) ; Skalka, Miroslav (advisor)
This thesis deals with simulation’s possibilities of the electromagnetic fields in electrical machines. A finite element method is the final element technique. The content of this thesis is a model and mesh creation and electromagnetic simulation of synchronous machine. The stator and rotor pack termination effect on the synchronous machine.is analyzed by finite element method in ANSYS program. The type of the stator termination pack is described by four segments. The magnetic field distribution is deformed due to the material properties of used segments. In the next part a methodics of mesh creation is shown. The mesh quality (in term of elements number and elements shape) is important due to the solution accuracy and speed.
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Design of permanent magnet generator
Štencl, Michal ; Huzlík, Rostislav (referee) ; Ondrůšek, Čestmír (advisor)
This thesis deals with electromagnetic design of synchronous generator with permanent magnets. The aim of this work is verify already made prototype of generator, which after testing has problem with warming of permanent magnets and winding. The work includes electromagnetic design of the machine, simulation through RMxprt and comparison with prototype of generator. The thesis includes also simulations operating conditions through Maxwell 2D and Maxwell 3D.
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Design and analysis of PMSM with concentrated winding
Macek, Pavel ; Ondrůšek, Čestmír (referee) ; Vítek, Ondřej (advisor)
Permanent magnet synchronous machine (PMSM) are widely used in many industrial applications. This thesis starts with familiarization with the properties and structure of each type of synchronous machines with permanent magnets. Subsequently there are described properties and possible division of AC winding types. Afterward analytical designs of four machines with two different types of winding were realized. These designs were compared by means of simulations using the RMxprt program and their properties were subsequently verified by method of finite element using the Maxwell 2D program. Evaluation and comparison in terms of utility properties for all designs of machines were performed at the conclusion of this thesis.
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