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Autonomic fault recorder designed for a distribution transformer station MV/LV
Gaborčík, Michal ; Drápela, Jiří (referee) ; Topolánek, David (advisor)
This master’s thesis deals with realization of fault recorder designed for a distribution transformer station. In theoretical part is created research about operation of distribution transformer stations and about analytic methods, which gives bases for fault detection in power network. The practical part consists of design and realization of fault recorder in LabVIEW interface using CompactDAQ measurement platform. Purpose of this recorder is monitoring and recording of voltage and current waveforms on secondary side of transformer station during the fault in high voltage network. Principle of fault detection is primarily based on level monitoring of voltage negative symmetrical component. Fault recorder has been successively optimized and the final version is presented in this thesis. At the end functionality of designed system is evaluated on simulated fault in a model of high voltage network.
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Development of Customized Signal Processing SW for dynamic analysis of engineering systems
Witassek, Tomáš ; Kovář, Jiří (referee) ; Lošák, Petr (advisor)
Aim of this thesis is to create a user interface for signal processing mostly in the area of dynamics. First part of this thesis describes the theory of acceleration and force sensors, A/D conversion and corresponding issues such as sampling, quantization and types of convertors. Following part provides a brief summary of National Instruments products for vibration measurement. Next part of this thesis deals with methods of signal processing such as Fourier transform, frequency response functions and experimental modal analysis. Software described in the last part of this thesis is created in LabVIEW enviroment.
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Logging application Mnemosyne
Pizur, Jaroslav ; Šedivá, Soňa (referee) ; Pikula, Stanislav (advisor)
The goal of this bachelor's thesis is creation of an application called Mnemosyne, which will be able to measure different types of measurement on each of NI 9219 four input channels. The application can log the data to a TDMS file and at the same time is able to write parameters and settings to its header. Thus every measurement is fully documented and application is able to reproduce any measurement by loading the header of any previously created file. The application is then tested for two different types of measurement on two distinct channels.
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Development of Customized Signal Processing SW for dynamic analysis of engineering systems
Witassek, Tomáš ; Kovář, Jiří (referee) ; Lošák, Petr (advisor)
Aim of this thesis is to create a user interface for signal processing mostly in the area of dynamics. First part of this thesis describes the theory of acceleration and force sensors, A/D conversion and corresponding issues such as sampling, quantization and types of convertors. Following part provides a brief summary of National Instruments products for vibration measurement. Next part of this thesis deals with methods of signal processing such as Fourier transform, frequency response functions and experimental modal analysis. Software described in the last part of this thesis is created in LabVIEW enviroment.
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Logging application Mnemosyne
Pizur, Jaroslav ; Šedivá, Soňa (referee) ; Pikula, Stanislav (advisor)
The goal of this bachelor's thesis is creation of an application called Mnemosyne, which will be able to measure different types of measurement on each of NI 9219 four input channels. The application can log the data to a TDMS file and at the same time is able to write parameters and settings to its header. Thus every measurement is fully documented and application is able to reproduce any measurement by loading the header of any previously created file. The application is then tested for two different types of measurement on two distinct channels.
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|
|
Autonomic fault recorder designed for a distribution transformer station MV/LV
Gaborčík, Michal ; Drápela, Jiří (referee) ; Topolánek, David (advisor)
This master’s thesis deals with realization of fault recorder designed for a distribution transformer station. In theoretical part is created research about operation of distribution transformer stations and about analytic methods, which gives bases for fault detection in power network. The practical part consists of design and realization of fault recorder in LabVIEW interface using CompactDAQ measurement platform. Purpose of this recorder is monitoring and recording of voltage and current waveforms on secondary side of transformer station during the fault in high voltage network. Principle of fault detection is primarily based on level monitoring of voltage negative symmetrical component. Fault recorder has been successively optimized and the final version is presented in this thesis. At the end functionality of designed system is evaluated on simulated fault in a model of high voltage network.
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