Output current harmonic elimination of a 3-fold interleaved precision power amplifier

M.L.A. Caris

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Abstract

In this paper a 3-fold interleaved inverter used as power amplifier is examined. First, a comparison between the classical multilevel topology and interleaved topology in a fullbridge configuration is made. After that, a generalized PWM modulator for multicell topologies will be defined. Lastly, a simple method is proposed to suppress harmonic distortion caused by tolerances in the cell inductors. Within this method the phaseshift will be recalculated, based on inductance values, in such way that the fundamental switching frequency component is removed from the spectrum. An analytic and a graphic method, supported by simulation results, to calculate the phase-shift is presented. Finally, results from an experimental setup are shown to verify the proposed ideas.
Original languageEnglish
Title of host publicationProceedings of the Sixth IEEE Young Researchers Symposium in Electrical Power Engineering : challenges in sustainable electrical energy, 16-17 April 2012, Delft, The Netherlands
Pages1-6
Publication statusPublished - 2012
Event6th IEEE Young Researchers Symposium in Electrical Power Engineering (YRS 2012), April 16-17, 2012, Delft, The Netherlands - Delft, Netherlands
Duration: 16 Apr 201217 Apr 2012

Conference

Conference6th IEEE Young Researchers Symposium in Electrical Power Engineering (YRS 2012), April 16-17, 2012, Delft, The Netherlands
Abbreviated titleYRS 2012
CountryNetherlands
CityDelft
Period16/04/1217/04/12
Other"Challenges in sustainable electrical energy"

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