| Title |
Performance Evaluation of Series-Connected ?uk Inverters for Electric Aircraft Propulsion Motor Drives |
| Authors |
Lukas Antonio Budiwicaksana ; Won-Seok Jung ; Dong-Choon Lee |
| DOI |
https://doi.org/10.6113/TKPE.2026.31.3.220 |
| ISSN |
1229-2214(pISSN), 2288-6281(eISSN) |
| Keywords |
Aircraft propulsions; ?uk inverter; High-frequency inverters |
| Abstract |
This paper provides a detailed performance evaluation of series-connected ?uk inverters for electric aircraft propulsion motor drives. As aviation industries move toward greener transportation trends, the concept of electric propulsion is becoming attractive for aircraft electrification. Designing and choosing the optimal structure for motor drives are crucial to realize this concept. With these aspects taken into consideration, this paper proposes a ?uk inverter, which generates an inherently sinusoidal output voltage, low dv/dt and di/dt, low common-mode voltage, and zero-voltage switching. As a result, issues related to electromagnetic interference and efficiency enhancement can be mitigated. In addition, the performance of the inverter is evaluated under four different types of motor drive configurations. Modeling, design procedure, power loss estimation, and cost evaluation are described to verify the optimal structure for a given rated power and voltage of the motor drives. Finally, the optimal structure is validated through an 800 V 8 kW 1600 Hz hardware prototype with a peak efficiency of 98.55%. |