Power Conversion Technology of Power Electronics Equipment Based on SiC Conversion Circuit

Authors

  • Xiaoyu Yang Electrical Engineering Department, Zhengzhou Railway Vocational and Technical College, Zhengzhou 451460, China
  • Hui Liu Electrical Engineering Department, Zhengzhou Railway Vocational and Technical College, Zhengzhou 451460, China

Abstract

In order to achieve the power conversion of power electronics equipment and eliminate the over-voltage peak phenomenon during the conversion process, a SiC conversion circuit is designed and applied to the power conversion process. As the power switches of power electronics transformers, SiC devices are frequently applied in isolated bidirectional DC/DC converter units to form SiC converter circuits. Given the phenomenon of doubleactive bridge in a SiC converter circuit, the double-active full bridge phase shift control mode was selected; that is, the driving signals on both sides of H-bridge were controlled by phase differences to convert the different operation states of the SiC converter circuit in one operation cycle to complete the power conversion. The results show that by maximizing the turn-off resistance, the turn-off peak of FET can be reduced, the interference between
electromagnetic wave and power electronic components can be alleviated, and the turn-off safety of FET can be ensured. By determining the angle difference of trigger pulse of different switches, the voltage on both sides of H-bridge can be obtained to achieve power transfer and conversion.

Keywords: SiC; conversion circuit; power electronics equipment; electric energy conversion; double-active bridge; inductive current.

Cite As

X. Yang, H. Liu, "Power Conversion Technology of Power Electronics Equipment Based on SiC Conversion
Circuit", Engineering Intelligent Systems, vol. 31 no. 5, pp. 395-401, 2023.




Downloads

Published

2023-09-01

Issue

Vol. 31 No. 5 (2023): International Journal of Engineering Intelligent Systems

Section

Article

License

The submission of a paper implies that, if accepted for publication, it will not be published elsewhere in the same form, in any language, without the prior consent of the publisher. Before publication, authors are requested to assign copyright to CRL Publishing Ltd. This allows CRL to sanction photocopying, and to authorize the reprinting of issues or volumes according to demand. Authors' traditional rights will not be jeopardized by assigning Copyright in this way, as they retain the right to reuse the material following publication, and to veto third-party publication.