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An Integrated Current-Voltage Compensator Design Method for Stable Constant Voltage and Current Source Operation of LLC Resonant Converters

Author

Listed:
  • Yeong-Jun Choi

    (The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, Korea)

  • Hwa-Rang Cha

    (The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, Korea)

  • Sang-Min Jung

    (The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, Korea)

  • Rae-Young Kim

    (The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, Korea)

Abstract

This paper proposes a method to charge a lithium ion battery with an integrated compensator. Unlike the conventional charging method which uses separate voltage/current compensators based on a constant voltage-constant current charge profile, the proposed method uses a single compensator. The conventional method requires a complicated design process such as separate plant modeling for compensator design and the compensator tuning process in the frequency domain. Moreover, it has the disadvantage of a transient state between the mode change. However, the proposed method simplifies the complicated process and eliminates the transient response. The proposed compensator is applied to the LLC resonant converter and is designed to provide smooth and reliable performance during the entire charging process. In this paper, for the compensator design, the frequency domain models of the LLC resonant converter at the constant voltage and constant current charging mode are derived including the impedance model of the battery pack. Additionally, the worst condition of the compensator design during the entire charging process is considered. To demonstrate the effectiveness of the proposed method, the theoretical design procedure is presented in this paper, and it is verified through experimental results using a 300 W LLC converter and battery pack.

Suggested Citation

  • Yeong-Jun Choi & Hwa-Rang Cha & Sang-Min Jung & Rae-Young Kim, 2018. "An Integrated Current-Voltage Compensator Design Method for Stable Constant Voltage and Current Source Operation of LLC Resonant Converters," Energies, MDPI, vol. 11(6), pages 1-18, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1325-:d:148553
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    References listed on IDEAS

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    1. Muhammad Umair Ali & Sarvar Hussain Nengroo & Muhamad Adil Khan & Kamran Zeb & Muhammad Ahmad Kamran & Hee-Je Kim, 2018. "A Real-Time Simulink Interfaced Fast-Charging Methodology of Lithium-Ion Batteries under Temperature Feedback with Fuzzy Logic Control," Energies, MDPI, vol. 11(5), pages 1-15, May.
    2. Xiaogang Wu & Wenwen Shi & Jiuyu Du, 2017. "Multi-Objective Optimal Charging Method for Lithium-Ion Batteries," Energies, MDPI, vol. 10(9), pages 1-18, August.
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    Cited by:

    1. Hwa-Rang Cha & Rae-Young Kim & Kyung-Ho Park & Yeong-Jun Choi, 2019. "Modeling and Control of Double-Sided LCC Compensation Topology with Semi-Bridgeless Active Rectifier for Inductive Power Transfer System," Energies, MDPI, vol. 12(20), pages 1-19, October.
    2. HwaPyeong Park & Mina Kim & HakSun Kim & JeeHoon Jung, 2019. "Design Methodology of Tightly Regulated Dual-Output LLC Resonant Converter Using PFM-APWM Hybrid Control Method," Energies, MDPI, vol. 12(11), pages 1-20, June.
    3. Young-Hwa Park & Rae-Young Kim & Yeong-Jun Choi, 2021. "An Active Cascaded Battery Voltage Balancing Circuit Based on Multi-Winding Transformer with Small Magnetizing Inductance," Energies, MDPI, vol. 14(5), pages 1-17, February.

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