Abstract
High-power-density high-speed electric motors for aircraft hybrid-electric propulsion (HEP) applications require high fundamental output frequency from power inverters. Conventional silicon (Si)-based megawatt (MW)-scale power inverters typically have low switching frequency that is not sufficient to meet the dynamic and harmonic requirements for such applications. An MW-scale medium-voltage three-level active neutral-point-clamped (ANPC) inverter based on a hybrid utilization of silicon carbide (SiC) and Si power devices (i.e., 'SiC+Si') has been developed for high-speed HEP drive applications, which has a rated output frequency of 1.4 kHz at 1-MW active power. To evaluate the power capability and efficiency of this ANPC inverter in the laboratory, power pump-back tests need to be carried out. In this article, control methods for single- and three-phase inverter pump-back tests have been developed to evaluate the performance of such high-frequency propulsion drives. The implementation and experimental results are presented to verify the efficacy of the control methods and the performance of the MW-scale 'SiC+Si' ANPC inverters.
Original language | English |
---|---|
Article number | 8949451 |
Pages (from-to) | 1002-1012 |
Number of pages | 11 |
Journal | IEEE Journal of Emerging and Selected Topics in Power Electronics |
Volume | 9 |
Issue number | 1 |
DOIs | |
State | Published - Feb 2021 |
Bibliographical note
Publisher Copyright:© 2013 IEEE.
Keywords
- High-frequency control
- high-speed motor drive
- hybrid-electric propulsion (HEP)
- multilevel inverter
- pump-back test
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering