National Repository of Grey Literature 6 records found  Search took 0.00 seconds. 
Graphical user interface for filter design
Tesařík, Jan ; Kledrowetz, Vilém (referee) ; Pristach, Marián (advisor)
This work deals with design of program that allows to generate VHDL description from connection of filters. Its main aim is to create graphical extension on existing program and connect it to VHDL generator. Output from program will be XML file of created connection and generated VHDL description. Design of program was done by using Qt Framework environment and C++ language.
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.
Software for digital filter verification
Tesařík, Jan ; Dvořák, Vojtěch (referee) ; Pristach, Marián (advisor)
Diploma thesis deals with design of verification environment for analyzing systems with digital filters. Verification environment is written in SystemVerilog language and it is generated by program, which is also providing generation of input data for system of filters. Matlab environment is used for gaining the reference data. The simulation of the designed involvement with digital filters is performed by program ModelSim. The most watched parameter is functional coverage which indicates how big part of the HDL description has been tested.
Graphical user interface for filter design
Tesařík, Jan ; Kledrowetz, Vilém (referee) ; Pristach, Marián (advisor)
This work deals with design of program that allows to generate VHDL description from connection of filters. Its main aim is to create graphical extension on existing program and connect it to VHDL generator. Output from program will be XML file of created connection and generated VHDL description. Design of program was done by using Qt Framework environment and C++ language.
Software for digital filter verification
Tesařík, Jan ; Dvořák, Vojtěch (referee) ; Pristach, Marián (advisor)
Diploma thesis deals with design of verification environment for analyzing systems with digital filters. Verification environment is written in SystemVerilog language and it is generated by program, which is also providing generation of input data for system of filters. Matlab environment is used for gaining the reference data. The simulation of the designed involvement with digital filters is performed by program ModelSim. The most watched parameter is functional coverage which indicates how big part of the HDL description has been tested.
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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1 Tesařík, Jáchym
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