Comparative analysis of PWM techniques: Simulation and DSP implementation

Author

Rus, D.C. ; Preda, N.S. ; Incze, I.I. ; Imecs, Maria ; Szabó, Cs

Author_Institution

Dept. of Electr. Drives & Robots, Tech. Univ. of Cluj-Napoca, Cluj-Napoca, Romania

Volume

3

fYear

2010

fDate

28-30 May 2010

Firstpage

1

Lastpage

6

Abstract

The paper presents an overview of the pulse width modulation (PWM) techniques for a feed-forward voltage source inverter. Classical and optimized modulation methods are treated regarding the ease of implementation, harmonic spectra, maximum modulation index and switching losses. Classical PWM procedures like naturally sampled with saw-tooth or symmetrical triangle-carrier-wave, regular sampled and space vector modulation (SVM) or optimized methods like third harmonic reference injection and flat-top discontinuous SVM are simulated using MATLAB-Simulink^® development package. An eZdsp development board was used to implement various PWM strategies on a fixed point DSP and compare their performances.

Keywords

PWM invertors; digital signal processing chips; harmonic analysis; Matlab-Simulink; PWM techniques; eZdsp development board; feed-forward voltage source inverter; fixed point DSP; flat-top discontinuous SVM; harmonic spectra; maximum modulation index; optimized modulation methods; pulse width modulation technique; sawtooth wave; space vector modulation; switching losses; symmetrical triangle-carrier-wave; third harmonic reference injection; Analytical models; Digital signal processing; Feedforward systems; Optimization methods; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Support vector machines; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation Quality and Testing Robotics (AQTR), 2010 IEEE International Conference on

Conference_Location

Cluj-Napoca

Print_ISBN

978-1-4244-6724-2

Type

conf

DOI

10.1109/AQTR.2010.5520764

Filename

5520764