Active Modulation Strategy for Capacitor Voltage Balancing of Three-Level Neutral-Point-Clamped Converters in High-Speed Drives

Guo, Feng; Yang, Tao; Li, Chen; Bozhko, Serhiy; Wheeler, Patrick

Abstract

In this article, the equivalent relationship between the nearest-three-virtual space vector and carrier-based pulsewidth-modulation scheme is established based on space vector coordinate for a three-level neutral-point-clamped (3L-NPC) converter. Moreover, to solve the neutral-point voltage imbalance problem of the studied 3L-NPC converter-fed high-speed drives, an active modulation strategy with the generalized bias-offset injection technique is proposed. Meanwhile, the excessive computational burden is significantly overcome by the fast calculation approach. The effectiveness of the proposed modulation algorithm is validated through both simulation and experimental results obtained from a 45 kW, 32 kr/min aircraft electric starter/generator prototype system.

Citation

Guo, F., Yang, T., Li, C., Bozhko, S., & Wheeler, P. (2021). Active Modulation Strategy for Capacitor Voltage Balancing of Three-Level Neutral-Point-Clamped Converters in High-Speed Drives. IEEE Transactions on Industrial Electronics, 69(3), 2276-2287. https://doi.org/10.1109/TIE.2021.3065605

• Journal Article Type: Article
• Acceptance Date: Mar 1, 2021
• Online Publication Date: Mar 17, 2021
• Publication Date: Mar 17, 2021
• Deposit Date: Mar 24, 2021
• Publicly Available Date: Mar 24, 2021
• 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: 69
• Issue: 3
• Pages: 2276-2287
• DOI: https://doi.org/10.1109/TIE.2021.3065605
• Keywords: Control and Systems Engineering; Electrical and Electronic Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/5413280
• Publisher URL: https://ieeexplore.ieee.org/document/9380914
• Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.