Journal of Power Electronics

  • 제21권9호
  • /
  • Pages.1383-1394
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  • 2021
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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DOI QR코드

DOI QR Code

Independent power decoupling method using minimum switch devices for single-phase current source converters

  • Liu, Yonglu (School of Automation, Central South University) ;
  • Tang, Shunxin (School of Automation, Central South University) ;
  • Wang, Hui (School of Automation, Central South University) ;
  • Ning, Guangfu (School of Automation, Central South University) ;
  • Xiong, Wengjing (School of Automation, Central South University)
  • 투고 : 2021.03.08
  • 심사 : 2021.05.21
  • 발행 : 2021.09.20
⟨ 이전 논문 다음 논문 ⟩

초록

Independent power decoupling (IPD) topologies are used to mitigate the twice-line-frequency ripple power in single-phase systems. Then, bulky passive capacitors or inductors can be removed. This paper proposes an improved IPD topology for single-phase current source converters (SCSCs) to remove the bulky DC rail inductor. It only adds one active switch and one diode. When compared with existing IPD circuits, the required switch devices are minimum and control is flexible. In addition, due to the fact that two identical capacitors are used to buffer the ripple power, the buffer capacitor voltage stress and DC current ripple are significantly reduced. This paper introduces the operation mode and switching states of the proposed topology. Then, the modelling and control strategy are introduced. Moreover, the designs of the passive components are presented. Finally, the effectiveness of the proposed topology is verified by constructing a low-power experimental prototype.

키워드

과제정보

This work was supported in part by the National Natural Science Foundation of China under Grant 61903381, in part by Changsha City Science and Technology Plan Project under Grant kq2009007, and in part by the Hunan Provincial Key Laboratory of Power Electronics Equipment and Grid under Grant 2018TP1001.

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