Simple PDM pattern generation for an AC/AC resonant converter

Author

Sandali, Abdelhalim ; Cheriti, A. ; Sicard, Pierre

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. du Quebec a Trois-Rivieres, Que., Canada

Volume

1

fYear

2002

fDate

5-8 Nov. 2002

Firstpage

294

Abstract

PDM control applied to a series resonant inverter reduces switching losses and eliminates the requirement for the rectifier DC voltage smoothing filter. Synthesis of a PDM control signal is quite complex and the aim of the paper is to simplify the PDM control law based equations. In the control law derived from the simplified model, PDM signal is generated by comparing a triangular carrier and a power reference signal. It is shown that the proposed simplified model is very accurate if the carrier frequency is below a certain limit. Validation of the simplified model is based on the comparison of harmonics content of the input current. Simulation results validate the proposed PDM pattern generator.

Keywords

AC-AC power convertors; invertors; losses; power conversion harmonics; pulse modulation; rectifying circuits; resonant power convertors; switching circuits; AC/AC resonant converter; PDM pattern generation; carrier frequency; harmonics content; input current; power reference signal; rectifier DC voltage smoothing filter; series resonant inverter; switching losses reduction; triangular carrier signal; AC generators; Equations; Filters; Rectifiers; Resonance; Resonant inverters; Signal synthesis; Smoothing methods; Switching loss; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]

Print_ISBN

0-7803-7474-6

Type

conf

DOI

10.1109/IECON.2002.1187524

Filename

1187524