Stabilita v moderních elektrických sítích
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Date
Authors
Koudelka, Jan
Advisor
Referee
Mark
P
Journal Title
Journal ISSN
Volume Title
Publisher
Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
ORCID
Abstract
Disertační práce se zabývá problematikou stability v moderních elektrizačních soustavách, které jsou typické nárůstem podílu obnovitelných zdrojů a integrací nových technologií. Práce je koncipována jako soubor vysvětlivek, komentářů a poznámek k recenzovaným článkům publikovaným autorem v konferenčních sbornících a časopisech. Vybrané publikace, prezentované v práci, se týkají tří tematických kategorií: dynamická (úhlová) stabilita elektrizační soustavy, frekvenční stabilita elektrizační soustavy a frekvenční odlehčování. Stěžejní prezentovaná témata jsou výpočty kritického času jako ukazatele dynamické stability a možnosti využití nových technologií jako jsou nabíjecí stanice pro elektromobily pro podporu soustavy v nouzovém stavu. Základní používanou metodou analýzy jsou dynamické simulace na zjednodušených modelech soustav.
The thesis deals with the issue of stability in modern power systems, which are characterized by an increase in the share of renewable sources and the integration of new technologies. The thesis is conceived as a set of explanatory notes, comments and remarks to peer-reviewed papers published by the author in proceedings and journals. The selected papers presented in the thesis concern three categories: transient (rotor angle) stability of the power system, frequency stability of the power system and under-frequency load shedding. The main topics presented are calculation of critical clearing time as an indicator of transient stability and the possibility of using new technologies, such as charging stations for electric vehicles, to support the system in an emergency state. The fundamental method used for analysis is dynamic simulations on simplified models of power systems.
The thesis deals with the issue of stability in modern power systems, which are characterized by an increase in the share of renewable sources and the integration of new technologies. The thesis is conceived as a set of explanatory notes, comments and remarks to peer-reviewed papers published by the author in proceedings and journals. The selected papers presented in the thesis concern three categories: transient (rotor angle) stability of the power system, frequency stability of the power system and under-frequency load shedding. The main topics presented are calculation of critical clearing time as an indicator of transient stability and the possibility of using new technologies, such as charging stations for electric vehicles, to support the system in an emergency state. The fundamental method used for analysis is dynamic simulations on simplified models of power systems.
Description
Citation
KOUDELKA, J. Stabilita v moderních elektrických sítích [online]. Brno: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. 2024.
Document type
Document version
Date of access to the full text
Language of document
en
Study field
bez specializace
Comittee
prof. RNDr. Vladimír Aubrecht, CSc. (předseda)
doc. Ing. Ondřej Vítek, Ph.D. (člen)
prof. Ing. Jiří Drápela, Ph.D. (člen)
doc. Ing. Jaroslava Orságová, Ph.D. (člen)
Ing. Petr Modlitba, CSc. (člen)
prof. Ing. Peter Braciník, PhD. - reviewer (člen)
prof. Robert Schürhuber - reviewer (člen)
Date of acceptance
2024-05-03
Defence
The defence took place in the presence of the members of the committee. The language of the meeting was English. During the defence, the PhD student presented the results of his dissertation to the committee, including his own contributions. After the presentation, supervisor prof. Toman, informed the attendees about his evaluation of the whole course of study. A discussion followed on the questions and comments of the opponents.
Then, in the public discussion, the questions/comments on the dissertation were presented by prof. Drapela, prof. Aubrecht, prof. Schürhuber. A written record of the questions is attached to the defence protocol. All the questions raised by the opponents and in the public discussion were correctly addressed by the student.
The student has demonstrated creative skills in the given research area and the thesis meets the standard requirements for a dissertation in the field.
In a closed discussion and after a secret ballot, the committee concluded that the doctoral candidate has fulfilled the conditions of Section 47(4) of the Higher Education Act No. 111/98 and can therefore be awarded the degree of Doctor - Ph.D.
Result of defence
práce byla úspěšně obhájena