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High Step-up Coupled Inductor Inverters Based on qSBIs

Author

Listed:
  • Hongchen Liu

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Xi Su

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Junxiong Wang

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

Abstract

In this paper, two types of high step-up coupled inductor inverters based on qSBIs (quasi- switched boost inverters) are proposed. By applying the coupled inductor to the qSBIs, the voltage gain of the proposed inverter is regulated by turn ratio and duty ratio. Thus, a high voltage gain can be achieved without the circuits operating at the extreme duty cycle by choosing a suitable turn ratio of the coupled inductor. In addition, the proposed circuits have the characteristics of continuous input current and low voltage stress across the passive components. A boost unit can be added to the proposed inverters for further improvement of the voltage gain. In this paper, the working principle, steady state analysis, and the comparisons of the proposed inverter with other impedance-source inverters are described. A 200 W prototype was created and the experimental results confirm the correctness of the analysis in this paper.

Suggested Citation

  • Hongchen Liu & Xi Su & Junxiong Wang, 2019. "High Step-up Coupled Inductor Inverters Based on qSBIs," Energies, MDPI, vol. 12(15), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:3032-:d:255198
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    Cited by:

    1. Juan-Guillermo Muñoz & Fabiola Angulo & David Angulo-Garcia, 2020. "Zero Average Surface Controlled Boost-Flyback Converter," Energies, MDPI, vol. 14(1), pages 1-18, December.

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