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http://dx.doi.org/10.6113/TKPE.2020.25.2.152

Input Filter for Direct Matrix Converter with Stepless Current Commutation Technique  

Han, Sanghun (Dept. of Electrical and Electronics Eng., Konkuk University)
Kwon, Soyeon (Dept. of Electrical and Electronics Eng., Konkuk University)
Cho, Younghoon (Dept. of Electrical and Electronics Eng., Konkuk University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.25, no.2, 2020 , pp. 152-155 More about this Journal
Abstract
This study proposes an input filter for a gallium-nitride-based direct matrix converter with a stepless current commutation technique. Various current commutation strategies have been adopted for reliable operation of switches. These strategies are complex to be implemented and require additional components. The stepless current commutation technique is simple to operate but causes overcurrent issues due to the occurrence of short circuit on input sources. In this study, to restrict the short circuit current, we utilized GaN devices with fast switching properties and modified the input filter. The proposed input filter was verified by experimental results of induction motor drive.
Keywords
Direct matrix converter; Input filter; Motor drive system; Stepless current commutation;
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