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%0 Thesis
%A Ünlübayir, Cem
%T Intelligent operating methods and their influence on components for hybrid marine propulsion systems
%V 197
%I Rheinisch-Westfälische Technische Hochschule Aachen
%V Dissertation
%C Aachen
%M RWTH-2025-09689
%B Aachener Beiträge des ISEA
%P 1 Online-Ressource : Illustrationen
%D 2025
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
%Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2025
%X This dissertation explores sustainable shipping by developing an electric propulsion system using high-temperature fuel cells and batteries. As shipping is a major emitter of greenhouse gases, alternative propulsion systems are essential for the global transition towards emission-free mobility. Batteries and fuel cells offer high efficiency, energy density, and technological feasibility for marine applications, enabling long-range cruising and dynamic maneuvering. This work focuses on the simulation-based analysis and the hardware validation of operating methods for a hybrid marine propulsion system. High-temperature fuel cells present unique technical challenges that require scientific investigation. The thesis develops energy management methods for efficient power distribution between propulsion components, tested and validated on a hardware-in-the-loop test bench using a 40 kWh battery system and a 32 kW fuel cell system. The work closes a research gap in maritime research, addressing large-scale electrified propulsion for cruise ships. Current solutions primarily retrofit existing systems or explore alternative fuels. However, previous studies focused on short-range ships like ferries, unsuitable for cruise operations. Advanced operating methods significantly improve drivetrain resource efficiency, reducing fuel consumption and extending component lifespan while lowering operating costs. Machine learning techniques, including reinforcement learning, enhance predictive and optimized energy management. The study validates its approach through hardware tests, confirming the propulsion system’s feasibility as an alternative to conventional marine engines.
%F PUB:(DE-HGF)11 ; PUB:(DE-HGF)3
%9 Dissertation / PhD ThesisBook
%R 10.18154/RWTH-2025-09689
%U https://publications.rwth-aachen.de/record/1021849