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A Novel Step-Up Converter with an Ultrahigh Voltage Conversion Ratio

Author

Listed:
  • Faqiang Wang

    (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Herbert Ho-Ching Iu

    (School of Electrical, Electronic and Computer Engineering, The University of Western Australia, Crawley, WA 6009, Australia)

  • Jing Li

    (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
    Xi’an Institute of Space Radio Technology, Xi’an 710100, China)

Abstract

A new step-up converter with an ultrahigh voltage conversion ratio is proposed in this paper. Two power switches of such a converter, which conduct synchronically, and its output voltage, which has common ground and common polarity with its input voltage, lead to the simple control circuit. No abrupt changes in the capacitor voltage and the inductor current of the proposed step-up converter mean that it does not suffer from infinite capacitor current and inductor voltage. Two input inductors with different values can still allow the proposed step-up converter to work appropriately. An averaged model of the proposed step-up converter was built and one could see that it was still fourth-order even with its five storage elements. Some theoretical derivations, theoretical analysis, Saber simulations, and circuit experiments are provided to validate the effectiveness of the proposed step-up converter.

Suggested Citation

  • Faqiang Wang & Herbert Ho-Ching Iu & Jing Li, 2018. "A Novel Step-Up Converter with an Ultrahigh Voltage Conversion Ratio," Energies, MDPI, vol. 11(10), pages 1-16, October.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2693-:d:174569
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    References listed on IDEAS

    as
    1. Al-Saffar, Mustafa A. & Ismail, Esam H., 2015. "A high voltage ratio and low stress DC–DC converter with reduced input current ripple for fuel cell source," Renewable Energy, Elsevier, vol. 82(C), pages 35-43.
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