Title :
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
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;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1187524
