A High-Frequency GaN-Based Motor Drive for Aircraft Electro-Mechanical Actuators

Cascade GaN devices extremely attractive for aircraft EMAs application because it has the high switching frequency, low loss and high temperature operating capability. However, owing to complex device structure and high dv/dt and di/dt characteristics, GaN-based motor drive are more prone to current...

Full description

Saved in:
Bibliographic Details
Published in2023 IEEE 18th Conference on Industrial Electronics and Applications (ICIEA) pp. 753 - 758
Main Authors Luo, Bin, An, Zezhou, Shen, Hongming, Li, Sihai, Guan, Wenqing, Zhou, Kai, Luo, Guagnzhao, Xiao, Xi, Zeng, Youhua
Format Conference Proceeding
LanguageEnglish
Published IEEE 18.08.2023
Subjects
Actuators
electromechanical actuators
GaN
gate driver
Motor drives
Prototypes
Snubbers
Switching frequency
Systematics
Temperature
Online AccessGet full text

Cover

More Information
Summary:Cascade GaN devices extremely attractive for aircraft EMAs application because it has the high switching frequency, low loss and high temperature operating capability. However, owing to complex device structure and high dv/dt and di/dt characteristics, GaN-based motor drive are more prone to current or voltage overshoots and oscillations, even device breakdown. In this paper, a prototype of 5-kW GaN-based motor drive is demonstrated with 100 kHz switching frequency. The mathematical model of turn-ON dv/dt effect and the turn-OFF di/dt effect of cascode GaN based inverter was established to reveal the occurrence mechanism of false trigger and oscillation. Then a systematic design methodology to design the gate driver and snubber parameters is proposed. Finally, experimental are carried out to validate the proposed design methods.
ISSN:2158-2297
DOI:10.1109/ICIEA58696.2023.10241852