Balancing and Frequency Control of Power systems in Presence of Wind Farms and Utility-Scale Power-to- Hydrogen Plants
Author
Salman, Basel Assaf
Term
4. term
Education
Publication year
2022
Abstract
Denmark’s increasing share of wind power to meet its 2030 and 2050 targets heightens the need to manage power fluctuations that challenge grid frequency stability. This thesis develops a control method for a system that couples a wind farm with power-to-hydrogen technology (an electrolyzer) and a fuel cell stack to mitigate frequency deviations and maintain power balance. The system components and overall control are modeled in Matlab/Simulink, and the control algorithm is evaluated under wind power production fluctuations and sudden load changes (connecting and disconnecting loads). Simulation results show that the implemented control, with support from the electrolyzer and fuel cell, can provide effective frequency control and sustain power balance with satisfactory performance. The findings indicate the potential of power-to-hydrogen as energy storage to support a wind-dominated power system.
Danmarks stigende andel af vindkraft for at nå 2030- og 2050-målene øger behovet for at håndtere effektudsving, som kan udfordre elnettets frekvensstabilitet. Dette speciale udvikler en styringsmetode for et system, hvor en vindpark kobles med power-to-hydrogen-teknologi (et elektrolyseanlæg) og en brændselscelle-stak for at afbøde frekvensafvigelser og opretholde effektbalancen. Systemets komponenter og den overordnede styring er modelleret i Matlab/Simulink, og styringsalgoritmen vurderes under både vindkraftens produktionsfluktuationer og pludselige lastændringer (til- og frakobling af belastninger). Simulationsresultaterne viser, at den implementerede styring, med hjælp fra elektrolyseanlægget og brændselscellen, kan bidrage til effektiv frekvenskontrol og opretholdelse af effektbalancen med tilfredsstillende ydeevne. Resultaterne peger på, at power-to-hydrogen kan fungere som energilager og levere støtte til et vinddomineret elsystem.
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