Research on Hybrid-Clamped Multilevel-Inverter Topologies
Chen, A.
Xiangning He
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Dec. 2006
Volume: 53,
Issue: 6
On page(s): 1898-1907
ISSN: 0278-0046
INSPEC Accession Number: 9201860
Digital Object Identifier: 10.1109/TIE.2006.885154
Current Version Published: 2006-11-30
Abstract
The concept of hybrid clamped is proposed in multilevel-inverter topologies, and a hybrid-clamped multilevel-inverter topology comprising active and passive clamping devices is presented in this paper. In this topology, the dc-link capacitor voltages can be balanced without additional circuitry or separated dc voltage sources, regardless of load characteristics. It can be used in real and reactive power conversion applications. The topology structure, operating principle, and self-voltage balancing ability are analyzed. In addition, the validity is confirmed by simulations and experiments based on a five-level inverter. Finally, the functions of different clamping devices are compared
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