A novel hybrid multilevel inverter using DC-Link voltage combination

Author

Joo, Sung-yong ; Kang, Feel-soon ; Park, Sung-Jun ; Kim, Cheul-U

Author_Institution

Dept. of Electr. Eng., Pusan Nat. Univ., South Korea

fYear

2003

fDate

16-18 Dec. 2003

Firstpage

159

Lastpage

162

Abstract

This paper presents a novel hybrid multilevel inverter using DC-Link voltage combination in order to improve the waveform of output voltage and reduce harmonics without an additional output filter. The proposed multilevel inverter can generate an 11-level output voltage. It employs three H-bridge cells, which is consisted of single-phase full-bridge inverter module. Among them, two modules are used for level generation, and one module performs PWM switching. Nine levels are synthesised by the level inverter, and two levels are added to outputs by the PWM inverter. As a result, it generates an 11-level. The operational principles are explained in depth, and the validity of the proposed system is verified through the experimental results based on a prototype.

Keywords

DC-DC power convertors; PWM invertors; SPICE; bridge circuits; prototypes; switching convertors; DC-Link voltage combination; H-bridge cells; PWM inverter; PWM switching; hybrid multilevel inverter; level inverter synthesis; output voltage waveform; prototype; single-phase full-bridge inverter module; Clamps; Diodes; Electromagnetic interference; Low voltage; Power harmonic filters; Power system harmonics; Prototypes; Pulse width modulation; Pulse width modulation inverters; Switched capacitor circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2003 IEEE Conference on

Print_ISBN

0-7803-7749-4

Type

conf

DOI

10.1109/EDSSC.2003.1283505

Filename

1283505