Optimal Operation of Electric Power System with Large Share of Renewable Energy Sources

Integracijom obnovljivih izvora energije mijenja se paradigma vođenja i planiranja elektroenergentom sustava; od pogona tijekom jednog dana, ili unutar dana, do dugoročnog horizonta u kojem se definiraju investicije. Kroz diplomski rad obrađuju se tehnički, ekonomski i regulatorni aspekti vođenja i planiranja elektroenergetskog sustava s visokim udjelom obnovljivih izvora energije. Tehno-ekonomski dio diplomskog rada je realiziran kroz izradu matematičkog modela temeljenog na mješovitom cjelobrojnom (ne)linearnom modelu pogona sustava koji analizira pogon elektrana i prijenosne mreže u slučajevima zagušenja uslijed integracije obnovljivih izvora energije. Cilj modela je ekonomska valorizacija sustava bez problema zagušenja i sa zagušenjima u prijenosnoj mreži odnosno usporedbena analiza investicijskih opcija za otklanjanja zagušenja s pogonskih mogućnostima promjena pogonskih točaka elektrana.The integration of renewable energy sources changes the paradigm of power system management and planning; from operation during one day, or within a day, to the long-term horizon in which investments are defined. The master thesis is covering technical, economic and regulatory aspects of the management and planning of the power system with a high share of renewable energy sources. The techno-economic part of the thesis was realized through the development of a mathematical model based on a mixed integer (non)linear model of system operation that analyzes the operation of power plants and transmission networks in cases of congestion due to integration of renewable energy sources. The aim of the model is economic valorization of the system without congestion and with congestion problems in the transmission network, i.e. comparative analysis of investment options for congestion removal with the possibility of changing the drive points of generation units