New modulation scheme for bidirectional qZS modular multi-level converters

Khera, Fatma A.; Klumpner, Christian; Wheeler, Pat W.

Abstract

This study proposes a dedicated modulation scheme for a bidirectional quasi-Z-source (qZS) modular multi-level converter. The operation principle and a suitable pulse-width modulation method are proposed. The relation between the modulation index and shoot-through duty ratio is derived. A formula for calculating the required value of qZS capacitance is given. The simulation results presented in the study validate the operation and the performance of the proposed topology.

Citation

Khera, F. A., Klumpner, C., & Wheeler, P. W. (2019). New modulation scheme for bidirectional qZS modular multi-level converters. Journal of Engineering, 2019(17), 3836-3841. https://doi.org/10.1049/joe.2018.8020

• Journal Article Type: Article
• Acceptance Date: Jul 27, 2018
• Online Publication Date: Jan 22, 2019
• Publication Date: Jun 1, 2019
• Deposit Date: Jul 15, 2019
• Publicly Available Date: Jul 15, 2019
• Journal: The Journal of Engineering
• Print ISSN: 2051-3305
• Electronic ISSN: 2051-3305
• Publisher: Institution of Engineering and Technology (IET)
• Peer Reviewed: Peer Reviewed
• Volume: 2019
• Issue: 17
• Pages: 3836-3841
• DOI: https://doi.org/10.1049/joe.2018.8020
• Public URL: https://nottingham-repository.worktribe.com/output/2308941
• Publisher URL: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8020
• Contract Date: Jul 15, 2019