magistrsko delo
Gorazd Kozmus (Author), Valentin Ažbe (Mentor)

Abstract

Magistrsko delo zajema področje dinamičnih pojavov v elektroenergetskih sistemih in dinamično analizo Nuklearne elektrarne Krško (NEK), ko je ta podvržena motnjam v sistemu. Glavni cilj je izdelati dovolj relevanten model regulacije NEK v programskem okolju Netomac in s pomočjo simulacij analizirati obnašanje elektrarne ob motnjah pri otočnem obratovanju slovenskega elektroenergetskega sistema. V prvem delu naloge je predstavljeno teoretično ozadje, kjer je najprej na kratko prikazana delitev stabilnosti elektroenergetskega sistema. Sledijo osnove regulacijske tehnike in podrobnejša obravnava turbinske in napetostne regulacije parnega agregata s pripadajočimi simulacijskimi modeli. V drugem delu je prikazano modeliranje turbinske in napetostne regulacije NEK v obliki regulacijskih shem in nabor vhodnih parametrov regulatorjev. Sledijo rezultati simulacij za posamezen sklop motenj. Pri tem je bilo ugotovljeno, da se NEK uspešno obdrži v obratovanju v vseh primerih motenega delovanja, pri čemer ni simuliran odklop elektrarne v smislu delovanja frekvenčne zaščite, ki v dinamičnem modelu ni implementirana, ampak je analiza narejena na podlagi grafičnega odčitavanja fizikalnih veličin iz dobljenih grafov. Pri tem je bilo odkrito nestabilno obnašanje dveh regulatorjev Termoelektrarne Šoštanj (plinski turbini PB1 in PB2), ki sta povzročala vsiljeno nihanje v ostalih elektrarnah. V zadnjem delu sledi sklep in povzetek magistrskega dela.

Keywords

dinamični pojavi;stabilnost elektroenergetskega sistema;turbinska regulacija;napetostna regulacija;Nuklearna elektrarna Krško;magisteriji;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FE - Faculty of Electrical Engineering
Publisher: [G. Kozmus]
UDC: 621.31(043.3)
COBISS: 120765443 Link will open in a new window
Views: 43
Downloads: 16
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Other data

Secondary language: English
Secondary title: Modeling and simulation of the dynamic behavior of Krško nuclear power plant in island operation
Secondary abstract: This master thesis addresses the field of electric power system stability and presents a dynamic analysis of the Krško nuclear power plant (KNPP) under the influence of system disturbances. The main objective is to develop a sufficiently relevant model of the KNPP control system in the Netomac software tool and to analyze the behaviour of the plant under various disturbance scenarios. In the first part of this paper, a theoretical background is introduced and a classification of power system stability is briefly described. This is followed by the basics of power system control and a more detailed discussion of turbine and voltage regulation of a power system with the associated simulation models. The second part presents turbine and voltage regulation modelling of the KNPP in the form of control schemes. This includes a set of input control parameters. Afterwards, the simulation results for each set of disturbances are presented. It was found that the Krško power plant is successfully kept in operation in all cases of disturbed functioning. However, the disconnection of the power plant was not modelled, since the frequency protection is not implemented in the dynamic model. Therefore, the conclusions are based on the analysis of physical quantities from the respective diagrams. The study has also revealed unstable behaviour of two regulation systems in the Šoštanj thermal power plant (gas turbines PB1 and PB2), which caused oscillations in other power plants in the system. At the end, the conclusions and summaries are presented.
Secondary keywords: dynamic phenomena;power system stability;turbine regulation;voltage regulation;Krško nuclear power plant;
Type (COBISS): Master's thesis/paper
Study programme: 1000316
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za elektrotehniko
Pages: XXIV, 125 str.
ID: 16382208