Abstract
The purpose of this paper is to accurately evaluate the performance and overall efficiency of an electrical machine driving a propeller (as a part of a hybrid or electric propulsion system) during the flight mission profile using electromagnetic-thermal simulations. The study focuses on a 250 kW, 5000 rpm, 1.25 kHz, 36/30 slot/pole surface permanent magnet (SPM) machine with additively manufactured (AM) hollow conductors and integrated heat pipes (HP). The machine drive parameters (frequency, and current) are tuned to maximize the efficiency for a given flight cycle, while providing the highest specific power (SP) during takeoff. Afterward using Multiphysics simulations, the transient thermal behavior of the machine is studied and temperature profile for different parts of the machine is extracted. Finally, steady-state temperatures during cruising are estimated and overall efficiency is re-evaluated.
Original language | American English |
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Number of pages | 7 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023 - San Francisco, United States Duration: 15 May 2023 → 18 May 2023 |
Conference
Conference | 2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023 |
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Country/Territory | United States |
City | San Francisco |
Period | 15/05/23 → 18/05/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
NREL Publication Number
- NREL/CP-5400-85750
Keywords
- Additive Manufacturing
- Efficiency
- Mission Profile
- SPM Machine
- Thermal Modeling