Abstract
An analysis and implementation of delta modulation (DM) technique in the control of AC-DC converters are presented in this paper. The DM technique offers advantages of easy implementation, continuous converter voltage control, and a direct control on the line harmonics. A simple model of the delta modulator is proposed to predict switching frequency, identify dominant harmonics, and determine switching points of the converter waveforms. Results of parametric variations of the modulator and performances of the single and three phase DM converters are reported. Experimental results of the single and three phase DM AC-DC converters validate the analytical results.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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