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.
Keywords
AC-DC power converters, multilevel converter, bidirectional control, sensorless control
DOI
10.1109/IECON51785.2023.10312062
Hyperlink
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. In: 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023): Proceedings, Singapore, Singapore, 16-19 October, 2023. Piscataway: IEEE, 2023, pp.1-5. ISBN 979-8-3503-3183-7. e-ISBN 979-8-3503-3182-0. ISSN 1553-572X. e-ISSN 2577-1647. Available from: doi:10.1109/IECON51785.2023.10312062
Publication language
English (en)