A DSP-based online optimal pulsewidth modulation (PWM) switching strategies for a modular structured multilevel (MSM) inverter

Author

Azli, N. Ahmad ; Yatim, A. H Mohd

Author_Institution

Energy Conversion Dept., Universiti Teknologi Malaysia, Skudai, Malaysia

Volume

2

fYear

2001

fDate

2001

Firstpage

623

Abstract

Implementation of a low switching frequency modulator for optimal pulsewidth modulation (PWM) switching strategies using Texas Instruments TMS320C31 digital signal processor (DSP) as the main processor for online control of a modular structured multilevel (MSM) inverter output is presented. This is made possible through a proposed curve fitting technique to allow for online computation of the optimal PWM switching angles. A detailed description on the online optimal PWM switching strategies is provided. The performance of the MSM inverter employing the control strategy based on simulation and experimental results are shown for comparison purposes

Keywords

PWM invertors; curve fitting; digital signal processing chips; frequency modulation; switched mode power supplies; voltage control; DSP; PWM switching; TMS320C31; Texas Instruments; curve fitting; digital signal processor; frequency modulator; modular structured multilevel inverter; online control; optimal pulsewidth modulation; optimal switching angles; performance; Digital modulation; Digital signal processing; Digital signal processors; Frequency modulation; Instruments; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and its Applications, Sixth International, Symposium on. 2001

Conference_Location

Kuala Lumpur

Print_ISBN

0-7803-6703-0

Type

conf

DOI

10.1109/ISSPA.2001.950222

Filename

950222