A single-phase delta-modulated inverter for UPS applications

Author

Abdel-Rahim, Naser ; Quaicoe, John E.

Author_Institution

Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada

Volume

40

Issue

3

fYear

1993

fDate

6/1/1993 12:00:00 AM

Firstpage

347

Lastpage

354

Abstract

The performance characteristics of the rectangular wave delta modulation (RWDM) scheme for uninterruptible power supply (UPS) applications is investigated. Normalized characteristic curves that show the effect of various modulator parameters on the frequency spectrum of the inverter output voltage are obtained using discrete Fourier transform (DFT) and harmonic analysis techniques. The performance of a single-phase half-bridge inverter with an LC filter is discussed, and experimental results are provided to validate the predicted and simulated results. It is shown that the harmonic content of the inverter output waveform can be controlled through the control of the modulator parameters

Keywords

delta modulation; fast Fourier transforms; harmonics; invertors; uninterruptible power supplies; LC filter; UPS applications; discrete Fourier transform; frequency spectrum; harmonic analysis; harmonic content; inverter; output voltage; performance characteristics; rectangular wave delta modulation; single-phase; uninterruptible power supply; Circuits; Cutoff frequency; Delta modulation; Discrete Fourier transforms; Harmonic analysis; Power harmonic filters; Pulse width modulation; Pulse width modulation inverters; Uninterruptible power systems; Voltage control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.232214

Filename

232214