The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Input Filter for Direct Matrix Converter with Stepless Current Commutation Technique

스텝리스 전류 커뮤테이션 기법이 적용된 직접형 매트릭스 컨버터를 위한 입력 필터

  • 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)
  • Received : 2020.01.06
  • Accepted : 2020.02.08
  • Published : 2020.04.20
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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.

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References

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