Journal of Power Electronics

  • 제10권6호
  • /
  • Pages.673-679
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  • 2010
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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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DSP Based Series-Parallel Connected Two Full-Bridge DC-DC Converter with Interleaving Output Current Sharing

  • Sha, Deshang (School of Automation, Beijing Institute of Technology) ;
  • Guo, Zhiqiang (School of Automation, Beijing Institute of Technology) ;
  • Lia, Xiaozhong (School of Automation, Beijing Institute of Technology)
  • 투고 : 2010.03.12
  • 발행 : 2010.11.20
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초록

Input-series-output-parallel (ISOP) connected DC-DC converters enable low voltage rating switches to be used in high voltage input applications. In this paper, a DSP is adopted to generate digital phase-shifted PWM signals and to fulfill the closed-loop control function for ISOP connected two full-bridge DC-DC converters. Moreover, a stable output current sharing control strategy is proposed for the system, with which equal sharing of the input voltage and the load current can be achieved without any input voltage control loops. Based on small signal analysis with the state space average method, a loop gain design with the proposed scheme is made. Compared with the conventional IVS scheme, the proposed strategy leads to simplification of the output voltage regulator design and better static and dynamic responses. The effectiveness of the proposed control strategy is verified by the simulation and experimental results of an ISOP system made up of two full-bridge DC-DC converters.

키워드

참고문헌

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  6. Current sharing in parallel connected boost converters 2016, https://doi.org/10.1049/joe.2016.0238