Unbalanced Selective Harmonic Elimination for fault-tolerant operation of three phase multilevel Cascaded H-bridge inverters

Author

Aleenejad, Mohsen ; Moamaei, Parvin ; Mahmoudi, Hamid ; Ahmadi, Reza

Author_Institution

Dept. of Electr. & Comput. Eng., Southern Illinois Univ., Carbondale, IL, USA

fYear

2015

fDate

15-19 March 2015

Firstpage

1589

Lastpage

1594

Abstract

This paper proposes a new modulation method for balanced operation of a multilevel inverter with a faulty switch. This modulation method is based on Selective Harmonic Elimination (SHE) and can be implemented in different multilevel topologies, primarily in Cascaded H-bridge (CHB) inverters. In this paper, first the general concept of SHE is explained briefly. Then, the proposed switching strategy for fault-tolerant operation of a CHB with one faulty switch is presented. Finally, experimental results are provided to validate the proposed switching.

Keywords

bridge circuits; fault tolerance; harmonic distortion; invertors; modulation; power system harmonics; topology; CHB inverters; SHE; fault-tolerant operation; faulty switch; modulation method; multilevel topologies; switching strategy; three phase multilevel cascaded H-bridge inverters; unbalanced selective harmonic elimination; Circuit faults; Fault tolerance; Fault tolerant systems; Harmonic analysis; Inverters; Modulation; Switches; Cascaded H-Bridge; Multilevel Inverter; Selective Harmonic Elimination; formatting;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE

Conference_Location

Charlotte, NC

Type

conf

DOI

10.1109/APEC.2015.7104559

Filename

7104559