Razvoj simulacijskega modela hidroelektrarne

KNEŽEVIĆ, IVAN (author), Čepin, Marko (mentor)

Dandanes bi si zelo težko predstavljali življenje brez električne energije. Med ključne vire električne energije v svetu uvrščamo uporabo vode v hidroelektrarnah. Eden od temeljnih kriterijev pri odločitvi ekonomske upravičenosti izgradnje hidroelektrarn pa je tudi analiza proizvodnje električne energije. Namen diplomskega dela in cilj razvoja matematičnega modela hidroelektrarne je simulacija sprememb hidrodinamičnih količin obravnavanega pretočnega sistema, kot tudi izračun proizvodnje električne energije glede na izbrane vhodne podatke. Pomen uporabe modela simulatorja je zagotoviti uporabniku ustrezne informacije, ki jih lahko uporabi pri načrtovanju ter dimenzioniranju hidroelektrarne. Načrtovanje in uporaba modela lahko temeljita na resničnih ali izrednih hidroloških podatkih. Diplomsko delo sestavljajo trije deli, ki se med seboj povezujejo ter na koncu povežejo v celoto v obliki ustvarjenega modela. V prvem delu so prestavljene delitve hidroelektrarn, opis delovanja hidroelektrarne, predstavitev glavnih delov, ki sestavljajo hidroelektrarno s poudarkom na tipih turbin, njihovi izkoristki v odvisnosti od pretoka ter njihova delovna območja. V drugem delu je opisan matematični model ter modeliranje sprememb hidrodinamičnih količin izbrane hidroelektrarne. V zadnjem delu pa so predstavljeni rezultati iz modela, ki temeljijo na že prej omenjenih resničnih ali izrednih hidroloških razmerah. V analizi delovanja modela so uporabljeni in primerjani vsi pomembni deli verige hidroelektrarne, ki vplivajo na točnost delovanja modela. Analizirane so kote gladine vode akumulacijskega bazena, pretoka vode skozi izbran tip turbine, izkoristek turbine v odvisnosti od pretoka ter delovnega območja, regulacija nivoja vode, dvig nivoja spodnje vode ter morebitno prelivanje. Za boljšo predstavitev modela pa je izdelana še vizualizacija sprememb hidrodinamičnih količin hidroelektrarne v obliki GIF slikovnega formata.

• Language: Slovenian
• Keywords: hidroelektrarna, izkoristki turbin, simulacija
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2022
• PID: 20.500.12556/RUL-140407
• COBISS.SI-ID: 122156803
• Publication date in RUL: 14.09.2022

Secondary language

• Language: English
• Title: Development of a hydro power plant simulation model

Abstract

Nowadays, it would be very difficult to imagine life without electrical energy. Use of water in hydropower plants is one of the key sources of electrical energy. One of the basic criteria in deciding about the economic justification for the construction of hydroelectric power plants is the analysis of electrical energy production. The purpose of this work is development of the mathematical model of a hydropower plant and a the simulation of changes in the hydrodynamic quantities of the considered flow system and calculation of electrical energy production according to selected input data. The importance of using a simulated model is to provide the user with relevant information that can be used in designing a hydropower plant. The application of the model can be based on real or extraordinary hydrological data. The work consists of three parts, which are interconnected and finally connected into a whole in the form of a created model. The first part presents different types of hydropower plants and their operation, a presentation of main parts that make up the hydroelectric power plant with emphasis on turbine types, their flow-dependent efficiency and their operation range. The second part describes the mathematical model and modeling of changes in the hydrodynamic quantities of the selected hydropower plant. The last part presents the results from the model based on the previously mentioned real or extraordinary hydrological conditions. In the analysis of the operation of the model, all important parts of the hydroelectric power plant chain that affect the accuracy of the operation of the model were used and compared. The levels of the accumulation basin, the flow of water through the selected type of turbine, the efficiency of the turbine depending on the flow and the working area, the regulation of the water level, the rise of the lower water and possible overflow were analyzed. For a better presentation of the model, a visualization of changes in the hydrodynamic quantities of the hydroelectric power plant in the form of a GIF image format was made.

• Keywords: hydropower plant, turbine efficiency, model simulation