NTRS - NASA Technical Reports Server

Back to Results
Projecting Power Converter Specific Power Through 2050 for Aerospace ApplicationsIn order to analyze the potential fuel burn benefit from the electrification of aircraft powertrains, it is important to quantify the amount of weight that will be added to the aircraft for each additional component of the electric powertrain. This paper provides a projection of the specific power and efficiency of power converters, (AC-DC, DC-AC, or DC-DC), through the year 2050. Data was first collected on state of the art power converters in multiple application areas, creating a power converter database. Relevant specific powers were added to a set of historical data from 1976-2020, and then three different logistic curves were fit through the historical data to represent S-curve shaped growth through the year 2050. The three curves were differentiated by conservative, nominal, and aggressive assumptions for the year in which the logistic curve begins to bend down towards slower growth. With a 30% knockdown factor accounting for the additional weight required for a high altitude converter, projections range from the aggressive specific power projection of 52.9 kW/kg in 2050 to a much more conservative specific power of 12 kW/kg in which growth is limited due to certifiability concerns. Little historical data was found on converter efficiencies to project efficiency based on historical trends. Projections are based on expert opinion on yearly decreases in converter losses. 2050 projections range from 0.987 to 0.997.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Christopher Hall
(Georgia Institute of Technology Atlanta, Georgia, United States)
Chrysoula L Pastra
(Georgia Institute of Technology Atlanta, Georgia, United States)
Andrew Burell
(Georgia Institute of Technology Atlanta, Georgia, United States)
Jonathan Gladin
(Georgia Institute of Technology Atlanta, Georgia, United States)
Dimitrios N Mavris
(Georgia Institute of Technology Atlanta, Georgia, United States)
Date Acquired
March 28, 2023
Publication Date
June 15, 2022
Subject Category
Aircraft Propulsion and Power
Meeting Information
Meeting: 2022 IEEE/AIAA Transportation Electrification Conference and Electric Aircraft Technologies Symposium
Location: Anaheim, CA
Country: US
Start Date: June 15, 2022
End Date: June 17, 2022
Sponsors: American Institute of Aeronautics and Astronautics, Institute of Electrical and Electronics Engineers
Funding Number(s)
WBS: 770848.
Distribution Limits
Public Use Permitted.
Technical Review
Single Expert
fuel burn
electric power
power converter
electrified powertrain flight demonstration
electric aircraft propulsion
No Preview Available