A Three-Level Common-Mode Voltage Eliminated Inverter With Single DC Supply Using Flying Capacitor Inverter and Cascaded H-Bridge

Author

Roshan Kumar, P. ; Rajeevan, P.P. ; Mathew, Kuravilla ; Gopakumar, K. ; Leon, Jose I. ; Franquelo, Leopoldo G.

Author_Institution

Dept. of Electron. Syst. Eng., Indian Inst. of Sci., Bangalore, India

Volume

29

Issue

3

fYear

2014

fDate

Mar-14

Firstpage

1402

Lastpage

1409

Abstract

A three-level common-mode voltage eliminated inverter with single dc supply using flying capacitor inverter and cascaded H-bridge has been proposed in this paper. The three phase space vector polygon formed by this configuration and the polygon formed by the common-mode eliminated states have been discussed. The entire system is simulated in Simulink and the results are experimentally verified. This system has an advantage that if one of devices in the H-bridge fails, the system can still be operated as a normal three-level inverter at full power. This inverter has many other advantages like use of single dc supply, making it possible for a back-to-back grid-tied converter application, improved reliability, etc.

Keywords

bridge circuits; capacitors; power convertors; reliability; Simulink; back-to-back grid-tied converter application; cascaded H-bridge; flying capacitor inverter; reliability; single DC supply; three phase space vector polygon; three-level common-mode voltage eliminated inverter; Capacitors; Induction motors; Inverters; Redundancy; Switches; Topology; Vectors; Common-mode voltage elimination; hybrid multilevel inverter; multilevel inverter; three-level inverter;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2013.2262808

Filename

6515622