Title :
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
fDate :
4/1/1989 12:00:00 AM
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;
Journal_Title :
Power Electronics, IEEE Transactions on
