New modulation scheme for bidirectional quasi z-source modular multilevel converters

Khera, Fatma; Klumpner, Christian; Wheeler, Patrick

Abstract

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

Citation

Khera, F., Klumpner, C., & Wheeler, P. (2018). New modulation scheme for bidirectional quasi z-source modular multilevel converters.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: 9th International Conference on Power Electronics, Machines and Drives
• End Date: Apr 19, 2018
• Acceptance Date: Nov 3, 2017
• Publication Date: Apr 19, 2018
• Deposit Date: Jan 30, 2018
• Publicly Available Date: Apr 19, 2018
• Peer Reviewed: Peer Reviewed
• Keywords: Quasi Z-source; Modular multilevel converter
• Public URL: https://nottingham-repository.worktribe.com/output/926901
• Related Public URLs: https://events.theiet.org/pemd/
• Contract Date: Jan 30, 2018