Dead-Time Compensation Method Based on UCE-Measurement for Direct Converters

This paper proposes a simple dead-time effect compensation method based on U CE -measurement for direct converters controlled by a 2/4-step commutation approach. Since the U CE -measurement is utilized for the current sign determination, the compensation is still working at current zero crossings. E...

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Bibliographic Details
Published in2018 IEEE Energy Conversion Congress and Exposition (ECCE) pp. 576 - 583
Main Authors Remus, Nico, Leubner, Martin, Hofmann, Wilfried
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2018
Subjects
AC-AC converters
Choppers (circuits)
commutation scheme
Energy conversion
harmonic distortion
Insulated gate bipolar transistors
matrix converter
Monte Carlo methods
power quality
Switches
Voltage
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Summary:This paper proposes a simple dead-time effect compensation method based on U CE -measurement for direct converters controlled by a 2/4-step commutation approach. Since the U CE -measurement is utilized for the current sign determination, the compensation is still working at current zero crossings. Employed on a V-connection AC chopper as instance of direct converters, the current quality is improved significantly in contrast to the one-step commutation. This is proven experimentally and the results are compared to the recent proposed one-step commutation scheme using only U CE -measurement. For demonstrating the advantages of the compensation method, results of the 2/4-step commutation without the dead-time compensation are shown as well.
ISSN:2329-3748
DOI:10.1109/ECCE.2018.8557904