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Modelling and Simulations of Electromechanical Transients is Electrical Power Systems
Gromotovič, Ivan ; Bátora, Branislav (referee) ; Koudelka, Jan (advisor)
This work deals with the issue of evaluating transient stability in the simulation program PSCAD. Factors affecting transient stability were analyzed on a single-machine SMIB model. The results of this analysis confirmed the theoretical assumption that for more accurate results of the analysis of transient stability, it is necessary to consider the mentioned factors. A short circuit was simulated on the IEEE9 test model and subsequently the load angles of the generators were monitored using various methods. The method of reference of the largest generator in the system proved to be a more suitable method for the assessment of relative load angles from the results of the analysis.
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Design Laboratory Phase Shifting Transformer
Korejčík, Michal ; Švec, Jan (referee) ; Paar, Martin (advisor)
This thesis deals with a power flow control in the electric power system. An overview of FACTS devices is introduced; their basic characteristics as well as examples of their application are discussed. A significant part of this thesis investigates phase shifting transformers (PST´s), which seem to be suitable for implementation in the transmission system of the Czech Republic. The PST´s are useful devices that control active power flows on cross-border lines and regulate unwanted and unexpected power flows. Basic types and characteristics of the PST´s are discussed. In chapter 7 is designed laboratory task that should validate the regulatory capabilities of the transformer PST. Designs of models of individual parts of this laboratory task are presented. In the last part of this thesis the regulation effect of the PST is validated in the GLF/AES program.
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Direct load angle measurement on the laboratory generator unit
Dvořáček, Jiří ; Bukvišová, Zuzana (referee) ; Orságová, Jaroslava (advisor)
Synchronous generators are the most used machines for production of electricity. Therefore it is critical to use various methods for checking operating parameters. One of the worst faults is falling out of synchronism which can even lead to machine damage. Main objective of bachelor thesis is to design a method for load angle measurement using available laboratory equipment and to calculate saturated synchronous reactances using load angle. Load angle is measured using incremental sensor and output voltage waveform.
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Modelling and Simulations of Electromechanical Transients is Electrical Power Systems
Gromotovič, Ivan ; Bátora, Branislav (referee) ; Koudelka, Jan (advisor)
This work deals with the issue of evaluating transient stability in the simulation program PSCAD. Factors affecting transient stability were analyzed on a single-machine SMIB model. The results of this analysis confirmed the theoretical assumption that for more accurate results of the analysis of transient stability, it is necessary to consider the mentioned factors. A short circuit was simulated on the IEEE9 test model and subsequently the load angles of the generators were monitored using various methods. The method of reference of the largest generator in the system proved to be a more suitable method for the assessment of relative load angles from the results of the analysis.
|
|
|
Direct load angle measurement on the laboratory generator unit
Dvořáček, Jiří ; Bukvišová, Zuzana (referee) ; Orságová, Jaroslava (advisor)
Synchronous generators are the most used machines for production of electricity. Therefore it is critical to use various methods for checking operating parameters. One of the worst faults is falling out of synchronism which can even lead to machine damage. Main objective of bachelor thesis is to design a method for load angle measurement using available laboratory equipment and to calculate saturated synchronous reactances using load angle. Load angle is measured using incremental sensor and output voltage waveform.
|
|
|
Design Laboratory Phase Shifting Transformer
Korejčík, Michal ; Švec, Jan (referee) ; Paar, Martin (advisor)
This thesis deals with a power flow control in the electric power system. An overview of FACTS devices is introduced; their basic characteristics as well as examples of their application are discussed. A significant part of this thesis investigates phase shifting transformers (PST´s), which seem to be suitable for implementation in the transmission system of the Czech Republic. The PST´s are useful devices that control active power flows on cross-border lines and regulate unwanted and unexpected power flows. Basic types and characteristics of the PST´s are discussed. In chapter 7 is designed laboratory task that should validate the regulatory capabilities of the transformer PST. Designs of models of individual parts of this laboratory task are presented. In the last part of this thesis the regulation effect of the PST is validated in the GLF/AES program.
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