A novel simulation technique for the analysis of digital asynchronous pulse width modulation

Author

Mirkazemi-Moud, Mehran ; Williams, Barry W. ; Green, Tim C.

Author_Institution

Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK

Volume

30

Issue

5

fYear

1994

Firstpage

1284

Lastpage

1289

Abstract

A digital simulation technique based on single Fourier series is used to predict the spectra, including the nonintegral harmonics, generated by digital asynchronous pulse width modulation invertors. The results, with an accuracy of 70 dB, are superior to the results obtained with fast Fourier transform techniques, and offer an alternative to the complex methods based on double Fourier integration and Bessel functions. The technique is applicable to any choice of reference waveform. Output distortion with the introduction of minimum pulse and dead time is studied

Keywords

circuit analysis computing; digital simulation; invertors; power engineering computing; power system harmonics; pulse width modulation; series (mathematics); Fourier series; asynchronous PWM invertors; dead time; digital simulation; minimum pulse; nonintegral harmonics; output distortion; reference waveform; Analytical models; Circuits; Digital modulation; Fast Fourier transforms; Fourier series; Frequency; Pulse width modulation; Pulse width modulation inverters; Sampling methods; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.315240

Filename

315240