Baseload concepts for increasing fuel cell durability in aircraft multi-powertrain operation
Publication date
2024-06-13
Document type
Konferenzbeitrag
Author
Organisational unit
Conference
NEIS 2023 - Conference on Sustainable Energy Supply and Energy Storage Systems ; Hamburg ; September 4 – 5, 2023
Project
BETA
Publisher
VDE Verlag
IEEE
Book title
NEIS 2023 : Conference on Sustainable Energy Supply and Energy Storage Systems, Hamburg, September 4 – 5, 2023
First page
239
Last page
244
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
DDC Class
620 Ingenieurwissenschaften
Keyword
Fuel cell protection
Fuel cell durability
Electric aircraft
Aircraft electric systems
Abstract
To increase the service life or durability of PEM fuel cells, no-load operation at open circuit voltage has to be avoided to reduce destructive electrochemical effects. This paper shows two approaches to realize a regulated base-load with a fuel cell protection unit for application in aircraft multi-powertrain-concepts. Firstly, a clocked MOSFET in the form of a chopper circuit, and secondly, a MOSFET in linear operation as current source. This contribution describes the design concept of both approaches and the validation of prototypes in a laboratory pHiL-environment. Both approaches are proven to be viable solutions, with the current source approach resulting in smoother operation.
Version
Published version
Access right on openHSU
Metadata only access