Journal
JOURNAL OF ENERGY STORAGE
Volume 56, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2022.105999
Keywords
Test bench; Fuel cell; Battery; Hybrid power train; Aviation
Categories
Funding
- German Federal Ministry for Eco-nomic Affairs and Energy [20Y1701B]
- German Federal Ministry for Digital [03B10703A]
Ask authors/readers for more resources
To reduce the impact of aviation on climate, new technologies such as fuel cell and battery hybrids are necessary. This study presents a test setup for direct hybrid electric power trains with an emulated fuel cell and battery. The behavior of the fuel cell and battery influences the voltage variation within the system.
In order to reduce the impact of aviation on climate, new technologies like fuel cell and battery hybrids are needed. To develop a hybrid electric aircraft, a flexible and adaptable laboratory test setup of the power train is a cost-and time-effective solution. Replacing the fuel cell and battery with DC sources simplifies the setup, but the characteristics of the fuel cell and the battery must be reproduced. This study presents a test setup for direct hybrid electric power trains with an emulated fuel cell and battery. Two DC (Direct Current) sources are controlled with the help of a database to mirror the behavior of the fuel cell and battery. The setup allows the investigation of the drive train behavior of a direct hybrid consisting of a variety of fuel cells and batteries. The hybrid behavior for different battery state of charge as well as different battery sizes are examined their the influence on the voltage variation within the system is analyzed. The more the fuel cell contributes to the hybrid power, the greater the voltage difference within the entire system. A higher power contribution from the battery reduces the system voltage variation at high power. At a rated power of 5kW, the voltage variation is lowered by 37.2% when the fuel cell share is reduced from 90% to 50%. A lower state of charge of the battery increases the voltage variation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available