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Evaluation of Electrical System Requirements for Implementing Turbine Electrified Energy ManagementTurbine Electrified Energy Management (TEEM) is a concept concerned with the management of energy in an electrified propulsion system. The management of energy in the hybrid-electric architecture has potential to benefit the turbomachinery and the aircraft it powers. The concept is particularly useful for improving operability during transient operation and could be leveraged to design a better performing engine. The concept utilizes electric machines coupled to the engine shafts and an electric power distribution system that includes energy storage. A controller is used to decide when and how energy is moved around the electrified propulsion system, particularly when considering energy conversion between mechanical and electrical forms. Prior work has shown that the electric machines can be used to supply/or extract supplemental power to/from the engine shafts to improve their operability and achieve or enable propulsion efficiency and performance benefits. However, the previous studies did not consider the practical constraints of the electrical machines and energy storage devices that are required for implementing the TEEM system architecture concept. This paper presents an integrated engine and electrical system model that is used to evaluate the electrical system requirements. The model captures the physics of the conceptual, Advanced Geared Turbofan 30,000lbf (AGTF30) engine, which features advanced technologies such as a compact gas turbine and a variable area fan nozzle. For this work, the engine is augmented with electrical system components that allow for the implementation of the TEEM concept. The evaluation presented suggests the potential of the TEEM concept to provide performance benefits for a turbofan engine.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Kratz, Jonathan L.
(NASA Glenn Research Center Cleveland, OH, United States)
Culley, Dennis E.
(NASA Glenn Research Center Cleveland, OH, United States)
Thomas, George L.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2019
Publication Date
August 22, 2019
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
Meeting Information
Meeting: AIAA/IEEE Electric Aircraft Technology Symposium (EATS)
Location: Indianapolis, IN
Country: United States
Start Date: August 22, 2019
End Date: August 24, 2019
Sponsors: Institute of Electrical and Electronics Engineers (IEEE), American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
WBS: 109492.
Distribution Limits
Work of the US Gov. Public Use Permitted.
Patent Application
Technical Review
NASA Technical Management
hybrid electric propulsion
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