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A Generic Control-Oriented Model Order Reduction Approach for High Step-Up DC/DC Converters Based on Voltage Multiplier

Author

Listed:
  • Binxin Zhu

    (College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, Hubei, China)

  • Qingdian Zeng

    (College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, Hubei, China)

  • Mahinda Vilathgamuwa

    (School of Electrical Engineering and Computer Science, Queensland University of Technology, Brisbane, QLD 4001, Australia)

  • Yang Li

    (School of Automation, Wuhan University of Technology, Wuhan 430070, Hubei, China)

  • Yao Chen

    (College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, Hubei, China)

Abstract

The modeling and control system design of high step-up DC/DC converters based on voltage multipliers (VMs) are difficult, due to the various circuit topologies and the presence of large number of capacitors in VMs. This paper proposes a generic approach to reduce the model order of such converters by replacing the VM capacitors with voltage sources controlled by the output voltage of the converter. Theoretical analysis and simulation results show that the derived models can accurately represent the low frequency response of the converter which is valuable for obtaining a small-signal AC model for control system design. The detailed modeling and controller design process are demonstrated for the converter, and the obtained simulation results are verified experimentally on a 400 W prototype.

Suggested Citation

  • Binxin Zhu & Qingdian Zeng & Mahinda Vilathgamuwa & Yang Li & Yao Chen, 2019. "A Generic Control-Oriented Model Order Reduction Approach for High Step-Up DC/DC Converters Based on Voltage Multiplier," Energies, MDPI, vol. 12(10), pages 1-17, May.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:10:p:1971-:d:233582
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