Research on Hybrid-Clamped Multilevel-Inverter Topologies

Author

Chen, Alian ; He, Xiangning

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou

Volume

53

Issue

6

fYear

2006

Firstpage

1898

Lastpage

1907

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

Keywords

invertors; power capacitors; reactive power; switching convertors; DC-link capacitor voltages; active clamping devices; five-level inverter; hybrid-clamped multilevel-inverter topologies; neutral-point voltage balancing; passive clamping devices; reactive power conversion applications; self-voltage balancing; topology structure; Capacitors; Circuit simulation; Circuit topology; Clamps; Diodes; Helium; Inverters; Reactive power; Switches; Voltage; Hybrid clamped; multilevel inverter; neutral-point voltage balancing; topology;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2006.885154

Filename

4016372