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Analysis of Integrated Magnetics for Input Series Output Series DC-DC Converter
  • +2
  • Yaqoob Ali,
  • Yan Zheng,
  • Muhammad Khan,
  • Abdar Ali,
  • Zhao Jing
Yaqoob Ali
Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering
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Yan Zheng
Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering
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Muhammad Khan
Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering

Corresponding Author:[email protected]

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Abdar Ali
Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering
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Zhao Jing
State Grid Nanjing Power Supply Company
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Abstract

Multi module isolated converters (MMICs) find extensive application in various DC-DC applications due to their remarkable features of galvanic isolation, bi-directional power flow, high power density and enhanced efficiency. However, voltage and current sharing among the converter modules are the most significant issues in MMICs. This paper proposes Multi-port Integrated-Magnetics Transformers (MpIMTs) which address the input-output DC-link voltage imbalances within an ISOS converter. The proposed transformers ensure the input voltage sharing (IVS) and output voltage sharing (OVS) through balancing windings within their structures, thus substitutes the complicated active control scheme with the balancing winding. Besides, the input side and output side modules are decoupled from each other, thus the impact of parameters variation and inter-module energy transfer during a transient of one side does not reflect to the other side. These properties are achieved by proposing a custom-designed core and an off the shelf available U core assembled MpIMTs. The magnetic and electrical equivalent along with the design criteria of the balancing winding are also presented. Furthermore, the paper includes the comparative analysis of the proposed transformers which reveals that while the U-core MpIMT offers simplified construction, it comes at the expense of slightly reduced efficiency compared to the custom-designed MpIMT. Finally, the proposed U core MpIMT is validated through a laboratory prototype.
16 Sep 2023Submitted to International Journal of Circuit Theory and Applications
18 Sep 2023Review(s) Completed, Editorial Evaluation Pending
18 Sep 2023Submission Checks Completed
18 Sep 2023Assigned to Editor
25 Sep 2023Reviewer(s) Assigned
01 Nov 2023Editorial Decision: Revise Major
03 Feb 2024Review(s) Completed, Editorial Evaluation Pending
14 Mar 2024Review(s) Completed, Editorial Evaluation Pending
14 Mar 2024Editorial Decision: Accept