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Direct frequency changers or matrix converters (MxC) [1–4] convert AC voltage at the input system with input frequency into AC voltage at the output system with different output frequency. The number of phases on input and output sides can be different although in the majority of applications MxC are typically designed with three input phases and three output phases. Conversion is done directly without requiring the DC link intermediate stage with additional passive components (usually capacitors). Normally MxC operate as a voltage source converter and convert higher input voltage into lower output voltage with a transfer ratio providing a maximum of \( \sqrt{2}/2 \) or 86.6% voltage utilization. The high voltage side of the converter is considered as the input side and the low voltage side is the output side although energy conversion is bidirectional. The output side can for example be connected to electrical machines making thus electrical drive (with R, L, and back emf dominant parameters) or to LC filter making thus static multi-phase AC/AC voltage converter. Such configuration and mode of operation will be called in this paper voltage control mode (VCM).

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Silicon Carbide-Based Voltage Boost Matrix Converter with Model Predictive Control

  • 章节

  • 发表日期：

    2025年

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  • Vladimir Blasko,
  • Boran Fan,
  • Rolando Burgos,
  • Dushan Boroyevich

摘要

Direct frequency changers or matrix converters (MxC) [1–4] convert AC voltage at the input system with input frequency into AC voltage at the output system with different output frequency. The number of phases on input and output sides can be different although in the majority of applications MxC are typically designed with three input phases and three output phases. Conversion is done directly without requiring the DC link intermediate stage with additional passive components (usually capacitors). Normally MxC operate as a voltage source converter and convert higher input voltage into lower output voltage with a transfer ratio providing a maximum of \( \sqrt{2}/2 \) or 86.6% voltage utilization. The high voltage side of the converter is considered as the input side and the low voltage side is the output side although energy conversion is bidirectional. The output side can for example be connected to electrical machines making thus electrical drive (with R, L, and back emf dominant parameters) or to LC filter making thus static multi-phase AC/AC voltage converter. Such configuration and mode of operation will be called in this paper voltage control mode (VCM).