Optimum natural sampled PWM technique for three phase three level diode clamped DC/AC power converter

Author

Kastawan, I.M.W. ; Dahono, Pekik Argo ; Chandra, T. Ritesh

Author_Institution

Dept. of Electr. Eng., Bandung Inst. of Technol., Bandung, Indonesia

fYear

2011

fDate

17-19 July 2011

Firstpage

1

Lastpage

4

Abstract

This paper presents analysis on determination of optimum reference signal for natural sampled pulse width modulation (PWM) technique applied in three phase three level diode clamped dc/ac power converter structure. Using Fourier analysis method, analytical expression of the mean square value of converter line-to-line output current harmonics is derived. Next, a signal that must be injected to the original sinusoidal reference to minimize this converter output current harmonics is determined. Minimization method shows that the optimum injected signal is one fourth of the third harmonic of original sinusoidal reference signal. This result conforms to that for conventional three phase two level dc/ac power converter structure.

Keywords

DC-AC power convertors; Fourier analysis; PWM power convertors; mean square error methods; power semiconductor diodes; Fourier analysis method; analytical expression; converter mean square value; line-to-line output current harmonics; optimum natural sampled PWM technique; three phase three level diode clamped DC/AC power converter; Equations; Harmonic analysis; Mathematical model; Minimization; Power system harmonics; Pulse width modulation; Switches; natural sampled PWM; sinusoidal injected with third harmonic reference signal; sinusoidal reference signal; three phase three level diode clamped dc/ac power converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering and Informatics (ICEEI), 2011 International Conference on

Conference_Location

Bandung

ISSN

2155-6822

Print_ISBN

978-1-4577-0753-7

Type

conf

DOI

10.1109/ICEEI.2011.6021783

Filename

6021783