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Electrified Aircraft Propulsion Systems: Gas Turbine Control Considerations for the Mitigation of Potential Failure Modes and HazardsThis paper provides a high-level review of the potential failure modes and hazards to which electrified aircraft propulsion (EAP) systems are susceptible, along with potential gas turbine control-based strategies to assist in the mitigation of those failures. To introduce the types of failures that an EAP system may experience, a generic EAP system is considered, consisting of gas turbine engines, mechanical drives, electric machines, power electronics and distribution systems, energy storage devices, and motor driven propulsors. The functionality provided by each of these EAP subsystems is discussed, along with their potential failure modes, and possible strategies for mitigating those failures. To further illustrate the role of gas turbine controls in mitigating EAP failure modes, an example based on a simulated EAP concept aircraft proposed by NASA is given. The effects of failures are discussed, along with turbomachinery control strategies, including reversionary control modes, and control limit logic.
Document ID
20200011515
Document Type
Conference Paper
Authors
Donald L Simon (Glenn Research Center Cleveland, Ohio, United States)
Joseph W Connolly (Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
May 26, 2020
Subject Category
Aircraft Propulsion and Power
Report/Patent Number
GRC-E-DAA-TN78673
GT2020-16335
Meeting Information
ASME 2020 Turbo Expo(Virtual)
Funding Number(s)
WBS: 081876.02.03.10.01.01.04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Technical Review
NASA Peer Committee

Available Downloads

NameType GT2020_16335 TN78673 Rev Final.pdf STI