MESSAI.iO

AI summary

75% confidence

This study presents the design and experimental validation of a high-power-density GaN-based inverter module for integrated modular motor drives in all-electric aircraft applications, achieving a gravimetric power density of 43.96 kW/kg and an efficiency of 98.65%. The inverter module is a key component of the integrated modular motor drive concept, which offers high power density, efficiency, and reliability. The module's design and testing demonstrate its potential for use in electrified propulsion systems.

Generated by MESSAI extraction pipeline · review against source PDF

Literature priors

Distribution

Reported parameters

The author’s reported value (▼) sits on top of the literature distribution from MESS-Parameters. Values outside the band are flagged as outliers.

Coulombic efficiency98.65%

1 extracted value

View extracted values

No 3D model is mapped to this paper yet. Parameter ranges above still place reported values on the literature distribution.

Abstract

The integrated modular motor drive (IMMD) concept is a promising solution for transportation electrification. IMMDs offer essential features such as high power density, efficiency, and reliability which are critical for electrified propulsion systems. While integration provides advantages in power density and efficiency, it also presents significant design challenges due to space constraints. In this study, a single inverter module of a 250 kW IMMD is designed and tested, which functions as an autonomous power converter. Each module contains a power converter, dc-link capacitor bank, and a local microcontroller, enabling independent control. The modules of the targeted IMMD are identical, allowing for easier replacement of failed units and reducing production complexity and cost. The designed inverter module underwent testing to evaluate both its switching characteristics and continuous operation. The manufactured inverter module obtained a gravimetric power density (specific power) of 43.96 kW/kg and an efficiency of 98.65%.

Key findings

  • The designed inverter module achieved a gravimetric power density of 43.96 kW/kg
  • The inverter module obtained an efficiency of 98.65%
  • The module's switching characteristics and continuous operation were successfully evaluated

Keywords

Modular designInverterPower densityElectric motorPower (physics)Power module

Identifiers

DOI
10.1109/JESTPE.2025.3564792
Journal
IEEE Journal of Emerging and Selected Topics in Power Electronics
Year
2025