Microprocessor-based sinusoidal waveform synthesis using Walsh and related orthogonal functions

Author

Asumadu, Johnson A. ; Hoft, Richard G.

Author_Institution

Power Electron. Res. Center, Missouri Univ., Columbia, MO, USA

Volume

4

Issue

2

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

234

Lastpage

241

Abstract

A method is described of eliminating harmonics in a pulsewidth-modulated waveform using Walsh and related functions that substitute linear algebraic equations for the nonlinear equations required in Fourier-series harmonic elimination. A microprocessor can then be used to calculate the firing angles to cancel the unwanted harmonics. In an extension of the method, it is shown that a sine wave can be synthesized from a fixed-voltage DC supply by using a reasonable number of power electronic switches

Keywords

electronic engineering computing; function generators; harmonics; microcomputer applications; power supply circuits; pulse width modulation; Fourier-series harmonic elimination; Walsh functions; fixed-voltage DC supply; microprocessor-based sinusoidal waveform synthesis; orthogonal functions; Fourier series; Hardware; Nonlinear equations; Power electronics; Power harmonic filters; Power system harmonics; Pulse width modulation; Signal processing algorithms; Signal synthesis; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.24908

Filename

24908