Comparison of multicarrier PWM techniques for cascaded H-bridge inverter

Author

Omer, Prabhu ; Kumar, Jagdish ; Surjan, Balwinder Singh

Author_Institution

EED, PEC Univ. of Technol., Chandigarh, India

fYear

2014

fDate

1-2 March 2014

Firstpage

1

Lastpage

6

Abstract

Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. Multicarrier pulse-width-modulation (PWM) strategies for cascaded H-bridge (CHB) inverter are used to identify phase-shifted PWM (PSPWM) that produces almost same THD as produced by carrier disposition PWM or level-shifted PWM (LSPWM), but PSPWM has the effect of even power distribution among cells while LSPWM has the effect of uneven power distribution among cells in a CHB. Simulation for a 9-level CHB is carried out in MATLAB/SIMULINK and simulation results are presented in this paper.

Keywords

PWM invertors; bridge circuits; harmonic distortion; phase shifters; power conversion harmonics; CHB inverter; LSPWM; MATLAB; PSPWM; SIMULINK; THD; carrier disposition PWM; cascaded H-bridge inverter; high-power medium-voltage energy control; level-shifted PWM; multicarrier PWM techniques; multilevel inverter technology; phase-shifted PWM; power distribution; pulse width modulation; Harmonic analysis; Insulated gate bipolar transistors; Inverters; Power distribution; Pulse width modulation; Switches; Topology; Cascade H-bridge inverter; level-shifted PWM; phase-shifted PWM; switching device losses; total harmonic distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical, Electronics and Computer Science (SCEECS), 2014 IEEE Students' Conference on

Conference_Location

Bhopal

Print_ISBN

978-1-4799-2525-4

Type

conf

DOI

10.1109/SCEECS.2014.6804463

Filename

6804463