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Back-to-back inverter for motors and generators
Wich, Petr ; Ctibor, Jiří (referee) ; Knobloch, Jan (advisor)
The aim of this thesis was to design and implement a back-to-back converter. It is an indirect frequency converter with a DC intermediate circuit and an active rectifier. First of all design procedure of the individual components is described with the calculation of their operating parameters. Next, the interconnection of the components and the assembly of the inverter including a virtual model is described. Subsequently, a mathematical model of the inverter was created and the control algorithm was tested on it. In the next part, the correctness of analogue value sensing by the control electronics was verified. Finally, test measurements were carried out to verify the operating parameters of the inverter, including verification of the power sizing.
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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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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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