State of Health Recognition for Aircraft Batteries Dynamic Equivalent Schematic and First Principles Model Considerations 2008-01-2933
Aviation battery maintenance is trending toward maintenance on-condition. NiCd, VRLA, or prospective Li-ion batteries are used to start engines, provide emergency back-up power, and assure ground power capability for maintenance and pre-flight checkout. As these functions are mission essential, State of Health (SoH) recognition is critical. GEM Power has developed a technological approach for SoH recognition, based on a battery equivalent schematic. The schematic is derived from a Matrix of Parameters (MoP), which includes ohm resistance, chemical resistance, electrical double layer capacity (EDLC), and open circuit voltage (OCV) [1]. Based on the dynamic equivalent circuitry approach, this paper will analyze failure modes for different aircraft battery chemistries, in addition to the initial stage of development of the first principles model, where a battery is considered a physical object and its behavior (charge, mass, and heat transfers) is described in terms of mathematical and physics equations.
Citation: James, J. and Tsenter, B., "State of Health Recognition for Aircraft Batteries Dynamic Equivalent Schematic and First Principles Model Considerations," SAE Technical Paper 2008-01-2933, 2008, https://doi.org/10.4271/2008-01-2933. Download Citation
Author(s):
John E. James, Boris Tsenter
Affiliated:
GEM Power, LLC
Pages: 6
Event:
Power Systems Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Lithium-ion batteries
Failure modes and effects analysis
Batteries
Heat transfer
Aircraft
Drag
Starters and starting
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