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.
|Number of pages||11|
|Journal||IEEE Journal of Emerging and Selected Topics in Power Electronics|
|State||Published - Feb 2021|
Bibliographical noteFunding Information:
Manuscript received August 18, 2019; revised October 31, 2019 and December 7, 2019; accepted December 22, 2019. Date of publication January 3, 2020; date of current version January 20, 2021. This work was supported in part by the U.S. National Aeronautics and Space Administration (NASA) under Grant NNC15CA29C and in part by the Department of Energy (DOE) under Grant DE-EE0007252. Recommended for publication by Associate Editor Jun Wang. (Corresponding author: Jiangbiao He).
© 2013 IEEE.
- 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