Feng Guo
Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives
Guo, Feng; Yang, Tao; Diab, Ahmed M.; Huang, Zhen; Yeoh, Seang Shen; Bozhko, Serhiy; Wheeler, Patrick
Authors
TAO YANG TAO.YANG@NOTTINGHAM.AC.UK
Professor of Aerospace Electricalsystems
Ahmed M. Diab
Zhen Huang
SEANG SHEN YEOH SEANG.YEOH@NOTTINGHAM.AC.UK
Senior Research Fellow
Professor SERHIY BOZHKO serhiy.bozhko@nottingham.ac.uk
Professor of Aircraft Electric Power Systems
Professor PATRICK WHEELER pat.wheeler@nottingham.ac.uk
Professor of Power Electronic Systems
Abstract
In the aircraft electric starter/generator system, the three-level neutral-point-clamped converters play a crucial role in driving turbofan engines and delivering onboard electrical power. However, the conventional pulsewidth modulation (PWM) strategies face the challenge of capacitor voltage deviation, large common-mode voltage (CMV), and extra switching losses. Regarding the characteristics of the studied wide-speed range aerospace drives, the modulation scheme needs to be designed according to its operating conditions. To tackle the above demerits, a hybrid active modulation approach is, hence, proposed in this article. By the coordinate-based PWM, the nearest-three-vector is used in the startup process as the neutral-point (NP) voltage balance can be realized with fewer switching intervals; when the drives run in generation mode, an enhanced carrier-based virtual-space-vector modulation technique is involved, which aims to eliminate NP voltage fluctuation, suppress CMV, and simplify the modulation process. With the help of bias-offset injection in the time and voltage domain, capacitor voltages can be effectively kept at a balanced state even though the imbalance exists. The validity of the presented algorithm is proved by simulation and experimental results obtained from a 45 kW, 32 kr/min aircraft starter/generator test rig.
Citation
Guo, F., Yang, T., Diab, A. M., Huang, Z., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2023). Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives. IEEE Transactions on Industrial Electronics, 70(4), 3449-3460. https://doi.org/10.1109/tie.2022.3176309
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 22, 2022 |
Online Publication Date | May 25, 2022 |
Publication Date | Apr 1, 2023 |
Deposit Date | Mar 17, 2023 |
Publicly Available Date | Mar 21, 2024 |
Journal | IEEE Transactions on Industrial Electronics |
Print ISSN | 0278-0046 |
Electronic ISSN | 1557-9948 |
Publisher | Institute of Electrical and Electronics Engineers |
Peer Reviewed | Peer Reviewed |
Volume | 70 |
Issue | 4 |
Pages | 3449-3460 |
DOI | https://doi.org/10.1109/tie.2022.3176309 |
Keywords | Electrical and Electronic Engineering; Control and Systems Engineering |
Public URL | https://nottingham-repository.worktribe.com/output/14895106 |
Publisher URL | https://ieeexplore.ieee.org/document/9782081 |
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Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives
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