Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Digitally Controlled Three-Phase Cycloconverter Type High Frequency AC Link Inverter Using Space Vector Modulation

  • Sha, Deshang (School of Automation, Beijing Institute of Technology) ;
  • Qin, Zian (School of Automation, Beijing Institute of Technology) ;
  • Wu, Dan (School of Automation, Beijing Institute of Technology) ;
  • Liao, Xiaozhong (School of Automation, Beijing Institute of Technology)
  • Received : 2010.06.24
  • Published : 2011.01.20
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Abstract

In this paper, a three phase cycloconverter type high frequency AC link inverter is discussed. The configuration consists of a high frequency full-bridge inverter and a high frequency transformer followed by a three phase cycloconverter whose switch is composed of anti-series connected MOSFETs with a common source. A simple digital control strategy based on space vector modulation (SVM) and repetitive control for the cycloconverter is proposed although its input voltage is a high frequency AC pulse. The operation principle of the proposed control strategy is analyzed and the equivalent working modes during one interval are also presented. The effectiveness of the proposed control strategy is verified through Matlab/Simulink simulations and experiments on a 1.45kW prototype.

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References

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