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Electromagnetic damper
Mikyska, Jan ; Huzlík, Rostislav (referee) ; Ondrůšek, Čestmír (advisor)
This master´s thesis is focused on obtaining electrical energy from vibration control car using electromagnetic dampers. The primary use of the electromagnetic damper is the production of electrical energy, which can then be used to power electrical appliances in your car or battery charging. The thesis is divided into six main parts: a literature review of possible ways of getting electricity from the car damping, theoretical and mathematical analysis of problems, the choice of design with computational analysis of dampers and power calculation.
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Measurement of induction machines
Sporni, Peter ; Huzlík, Rostislav (referee) ; Janda, Marcel (advisor)
This work dissert about problematics of induction engines, which are the most used types of electrical drives used in present time. At the beginning we will explain their construction and its influence to the characteristics of the engine and possibilities of their regulation. In the next part we will describe some basic types of measurments implemented on these engines. To verify the theory which was described in this work we will discuss measurments realized on concrete types of engines. At the end we will calculate the main dimensions for one of the measured engine.
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The utilization of 3D CAD systems in power electrical engineering
Sedláček, Petr ; Huzlík, Rostislav (referee) ; Kuchyňková, Hana (advisor)
This bachelor’s work focuses on the new modeling options, the creation of drawing documentation in the Autodesk Inventor Professional software and also on animation creation in Autodesk Inventor Studio as a follow-up to the semestral project called Parametric CAD Systems in Heavy Current Electrical Engineering. The aim of this work is to evaluate innovations in Autodesk Inventor 2009 Professional with regard to its previous editions. The second part deals with procedures used for creating drawing documentation including its practical implementation. The final part describes animation options and tools offered by the Inventor Studio software. The final animation was made by means of 1FJ4 synchronous generator model from Siemens Electric Machines s.r.o.
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Analysis and design of the AC machines winding.
Vorel, Luboš ; Huzlík, Rostislav (referee) ; Běloušek, Radim (advisor)
This diploma thesis is focused on an analysis and design of an AC machines windings. In the theoretical part of the thesis, differences between single-layer and double-layer windings are explained. Next, the properties of a stator winding of synchronous machines are described. Finally, the winding factor is determined by means of a standard calculation method and by means of a new progressive calculation method, too. In the experimental part of this thesis, the stator winding of a high-speed synchronous generator excited by permanent magnets on the rotor is designed. This generator is driven by a steam turbine.
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Analysis of dynamic load from induction machine current signature
Pavláček, Jan ; Ondrůšek, Čestmír (referee) ; Huzlík, Rostislav (advisor)
This thesis focuses on the analysis of the dynamic behavior of the load from the measurement of stator currents of induction motor. Work is sorted from basic engine failures equations, mathematical models, types of signal processing, simulation and measurement. The practical part deals with the design of the motor model in Matlab Simulink, the simulated and the measurement of the pump BETA 12 YC On the Department of Fluid Engineering Victor Kaplan. Use appropriate types of signal processing evaluate the results. The aim of this work is to analyze the dynamic changes of the load.
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Systems of protection and remote control of medium voltage substation with using protection with communication Profibus and IEC61850
Tesařík, Jan ; Fazekaš, Tibor (referee) ; Huzlík, Rostislav (advisor)
This Diploma thesis deals with the system for protection and remote control for MV switchgear by using protection relays with communication protocols PROFIBUS and IEC61850. The first part represents a theoretical introduction to points at issue. In the first part, the reader will get conceived with the communication standard IEC61850 and its typical architecture for MV switchgear, and also with data model based on this standard. Second part discusses the PROFIBUS communication protocol. In this part, the reader can acquire information about transmit technology and communication protocol for PROFIBUS. Last part of this theoretical chapter contains an overview on the MODBUS communication. The second part deals with the description of protection relays, which were used for the purposes of this thesis. In the first subchapter, the reader can learn about the REM620 from ABB Company, its configuration and cooperation with IEC61850 standard. Second subchapter describes the HMS Anybus communication converter. The reader will get further knowledge about description of this device and how to configure the communication protocols. In last subchapter, a description of protection relay SIPROTEC 7SJ64 produced by Siemens company is explained. With the third part starts the practical work within this thesis with protection relays. This chapter is divided into two parts; each describes different system with using the protection relays. First system contains ABB REM620 relay and HMS Anybus converter. By converting MODBUS protocol with the Anybus converter, the REM620 can be connected to PROFIBUS network. This part includes the configuration of REM620 and Anybus converter, the engineering of MODBUS and PROFIBUS protocols and testing various signals in those networks. The second system contains Siemens SIPROTEC 7SJ64 and ethernet switch. This subchapter deals with the preparation of configuration for SIPROTEC 7SJ64 and the engineering for IEC61850 communication. This part finishes with the comparing of both systems on the engineering bases. The last part of this thesis is about working with the LabVIEW instrument. Within this part, the software emulation of protection relay was made. The program offers to the user the possibility of setting input parameters as the effective values of current and voltage, the frequency and the current phase shift. Also the user can set the thresholds for protection functions, such as the Overcurrent, the Voltage and the Frequency protection. As last one, the Phase unbalance protection for the current phases is present.
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Simulation of hybrid car drive
Byrtus, Jiří ; Vetiška, Vojtěch (referee) ; Huzlík, Rostislav (advisor)
This thesis deals with analysis of electric drive parts from hybrid electric vehicle, namely interior permanent magnet synchronous motor and inverter with control. First part describes a basic theory. Further, motor and inverter computer models are shown, specified simulations are performed on this models. Results are compared with values measured on real machines from accessible literary sources.
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Design and optimization of three-phase synchronous generator
Šulák, Ondrej ; Huzlík, Rostislav (referee) ; Vítek, Ondřej (advisor)
My work will not inform you only with the issue of magnetic field, but also with design complications such as: proposal winding, analysis cogging, the machine connection to infinite bus and independent network and their solutions in the design of electrical machine. In the introductory chapter, we tried to offer the most accurate theory of magnetic fields because it is hard to understand that episodes of physical design of the machine is our alpha and omega. Shows the results of the program RMxprt and Maxwell, where we simulate the synchronous machine with the connection nominal load. The results of the program are verified and compared with calculations.
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