Improved Variable DC Approach to Minimize Drivetrain Losses in Fuel Cell Marine Power Systems

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
11
Series
IEEE Transactions on Industry Applications
Abstract
This article proposes a novel approach for operating hybrid fuel cell and battery power systems in marine vessels. The target of the approach is to reduce energy losses in drivetrain devices. In the proposed approach, the dc bus voltage of the hybrid power system is adjusted according to fuel cell operating points, which enables operation in freewheel mode, and thus significantly reducing power conversion losses. Feasibility of the proposed approach is verified using a real-time hardware-in-loop simulation setup consisting of prevalidated virtual models and real industrial power converter controllers. The results presented in the work illustrate that the variable dc approach enables significant improvements in drivetrain efficiencies, and thus providing significant savings for vessel operators. Additionally, variable dc approach is shown to eliminate high-frequency current ripple at the fuel cell terminals, which can further improve the efficiency and the lifetime of the fuel cells.
Description
Keywords
Drivestrain, Efficiency, Fuel cells, Hybrid losses, Power systems control, Variable DC voltage
Other note
Citation
Haxhiu, A, Kyyrä, J, Chan, R & Kanerva, S 2021, ' Improved Variable DC Approach to Minimize Drivetrain Losses in Fuel Cell Marine Power Systems ', IEEE Transactions on Industry Applications, vol. 57, no. 1, 9247287, pp. 882-893 . https://doi.org/10.1109/TIA.2020.3035337