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Bidirectional Interleaved PWM Converter with High Voltage-Conversion Ratio and Automatic Current Balancing Capability for Single-Cell Battery Power System in Small Scientific Satellites

Author

Listed:
  • Masatoshi Uno

    (College of Engineering, Ibaraki University, Hitachi 316-8511, Japan)

  • Masahiko Inoue

    (College of Engineering, Ibaraki University, Hitachi 316-8511, Japan)

  • Yusuke Sato

    (College of Engineering, Ibaraki University, Hitachi 316-8511, Japan)

  • Hikaru Nagata

    (College of Engineering, Ibaraki University, Hitachi 316-8511, Japan)

Abstract

Single-cell battery power systems are a promising bus architecture for small scientific satellites. However, to bridge the huge voltage gap between a single-cell battery and power bus, bidirectional converters with a high voltage conversion ratio and a large current capability for the low-voltage side are necessary. This article proposes a bidirectional interleaved pulse width modulation (PWM) converter with a high voltage conversion ratio and an automatic current balancing capability. By adding capacitors to conventional interleaved PWM converters, not only are inductor currents automatically balanced without feedback control or current sensors, but also voltage conversion ratios at a given duty cycle can be enhanced. Furthermore, the added capacitors can reduce voltage stresses of switches and charged-discharged energies of inductors, realizing more efficient power conversion and reduced circuit volume in comparison with conventional converters. A 100-W prototype was built for experimental verification, and results demonstrated the fundamental characteristics and efficacy of the proposed converter.

Suggested Citation

  • Masatoshi Uno & Masahiko Inoue & Yusuke Sato & Hikaru Nagata, 2018. "Bidirectional Interleaved PWM Converter with High Voltage-Conversion Ratio and Automatic Current Balancing Capability for Single-Cell Battery Power System in Small Scientific Satellites," Energies, MDPI, vol. 11(10), pages 1-12, October.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2702-:d:174782
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    References listed on IDEAS

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    1. Liran Li & Zhiwu Huang & Heng Li & Honghai Lu, 2016. "A High-Efficiency Voltage Equalization Scheme for Supercapacitor Energy Storage System in Renewable Generation Applications," Sustainability, MDPI, vol. 8(6), pages 1-19, June.
    2. Yunlong Shang & Qi Zhang & Naxin Cui & Chenghui Zhang, 2017. "A Cell-to-Cell Equalizer Based on Three-Resonant-State Switched-Capacitor Converters for Series-Connected Battery Strings," Energies, MDPI, vol. 10(2), pages 1-15, February.
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    Cited by:

    1. Min-Sup Song & In-Ho Cho & Jae-Bum Lee, 2020. "± 180° Discontinuous PWM for Single-Phase PWM Converter of High-Speed Railway Propulsion System," Energies, MDPI, vol. 13(7), pages 1-16, March.
    2. Ahmed Al Amerl & Ismail Oukkacha & Mamadou Baïlo Camara & Brayima Dakyo, 2021. "Real-Time Control Strategy of Fuel Cell and Battery System for Electric Hybrid Boat Application," Sustainability, MDPI, vol. 13(16), pages 1-19, August.

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