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A master's thesis from Aalborg University
Book cover


Market participation of large-scale Hybrid power plant

Author

Term

4. term

Publication year

2020

Pages

59

Abstract

Dette speciale undersøger, hvordan et storskala hybridkraftværk, der kombinerer vind, solceller og batterilagring, effektivt kan deltage i day-ahead- og intradag-elmarkeder. Arbejdet adresserer behovet for at opfylde markedsforpligtelser og maksimere indtægter under variabel vedvarende produktion og med hensyn til batterislitage. Der udvikles en markedsdeltagelsesalgoritme og en anlægscontroller (Hy-PPC), og anlægget modelleres i MATLAB/Simulink og DIgSILENT PowerFactory. Prognoser for produktion og priser anvendes til budgivning i day-ahead-markedet og til korrigerende handlinger i intradag-/balancemarkedet. Med det australske elmarked som casestudie viser simuleringer, at algoritmen sammen med det foreslåede kontrolsystem kan opfylde forpligtelser i hvert handelsinterval, afbøde overforpligtelser fra day-ahead via intradagshandel og sælge overskydende energi, når den er tilgængelig. Studiet gennemgår markedsrammer, modellering og kontroltilgang og diskuterer forventede økonomiske effekter; detaljerede resultattal er ikke inkluderet i dette uddrag.

This thesis investigates how a large-scale hybrid power plant combining wind, solar PV, and battery storage can participate effectively in day-ahead and intraday electricity markets. It addresses the challenge of meeting market commitments and maximizing revenues under variable renewable generation while considering battery wear. A market participation algorithm and a plant-level controller (Hy-PPC) are developed, and the plant is modeled in MATLAB/Simulink and DIgSILENT PowerFactory. Forecasts of generation and prices inform bidding in the day-ahead market and corrective actions in the intraday/balancing market. Using the Australian electricity market as a case study, simulations show that the algorithm, together with the proposed control system, can fulfill commitments for each trading interval, mitigate day-ahead over-commitments via intraday trading, and sell excess energy when available. The study outlines market context, plant modeling, and control approach, and discusses expected economic impacts; detailed numerical results are not included in this excerpt.

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