9-Level Active Neutral Point Clamped Multilevel Converter with Cascaded H-bridges Fed by Flying Capacitors and T-type Interconnections

49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023): Proceedings 2023
Aleksandrs Suzdaļenko, Huynh Van Khang, Jānis Zaķis, Pāvels Suskis

This study proposes an active neutral point clamped bidirectional multilevel converter, consisting of cascaded H-bridges fed by flying capacitors and T-type interconnections. It ensures any combination and polarity of flying capacitors in the current path, allowing a simple voltage balancing within the same voltage-pole. The flying capacitor voltages are scaled by factor of 2, enabling multiple switching vector combination for intermediate voltage-poles, as well as extending the number of voltage-poles. The suggested topology can reduce number of switches as compared to the counterparts. The framework also presents a method of balancing capacitor voltage. The feasibility and performance of the proposed solutions are verified by simulation results.

Atslēgas vārdi
AC-DC power converters, multilevel converter, bidirectional control, sensorless control
DOI
10.1109/IECON51785.2023.10312062
Hipersaite
https://ieeexplore.ieee.org/document/10312062

Suzdaļenko, A., Khang, H., Zaķis, J., Suskis, P. 9-Level Active Neutral Point Clamped Multilevel Converter with Cascaded H-bridges Fed by Flying Capacitors and T-type Interconnections. No: 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023): Proceedings, Singapūra, Singapore, 16.-19. oktobris, 2023. Piscataway: IEEE, 2023, 1.-5.lpp. ISBN 979-8-3503-3183-7. e-ISBN 979-8-3503-3182-0. ISSN 1553-572X. e-ISSN 2577-1647. Pieejams: doi:10.1109/IECON51785.2023.10312062

Publikācijas valoda
English (en)