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Control Strategy of Single-Phase Three Level Neutral Point Clamped Cascaded Rectifier

Author

Listed:
  • Xiaoqiong He

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Xiaolan Lin

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Xu Peng

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Pengcheng Han

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Zeliang Shu

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Shibin Gao

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

Abstract

Single-phase 3-level neutral point clamped cascaded rectifier (3LNPC-CR) has been successfully made its way into traction drive system as a high-voltage traction converter. In this passage, the control issue of the 3LNPC-CR is considered. A transient current control strategy, combined with proportional integral (PI) controllers, is adopted to achieve unity power factor, satisfactory sinusoidal grid current, regulated overall dc voltage, and even efficient voltage balance between each module. Besides, with regard to the instinct voltage fluctuation problem among dc-link capacitors in one 3-level neutral point clamped (3LNPC) rectifier module, a phase shift carrier space vector pulse width modulation (PSC-SVPWM) worked along with a reasonable redundancy selection scheme is addressed. In addition, two auxiliary balancing circuits for a single-phase 3LNPC rectifier is proposed. The voltage balancing capacity of these internal-module balancing schemes are analyzed and compared. Finally, the control performance of these proposed strategies are verified by simulations and experiments.

Suggested Citation

  • Xiaoqiong He & Xiaolan Lin & Xu Peng & Pengcheng Han & Zeliang Shu & Shibin Gao, 2017. "Control Strategy of Single-Phase Three Level Neutral Point Clamped Cascaded Rectifier," Energies, MDPI, vol. 10(5), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:592-:d:97043
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    References listed on IDEAS

    as
    1. Xu Peng & Xiaoqiong He & Pengcheng Han & Aiping Guo & Zeliang Shu & Shibin Gao, 2016. "Smooth Switching Technique for Voltage Balance Management Based on Three-Level Neutral Point Clamped Cascaded Rectifier," Energies, MDPI, vol. 9(10), pages 1-16, October.
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    Cited by:

    1. Pengcheng Han & Xiaoqiong He & Yi Wang & Haijun Ren & Xu Peng & Zeliang Shu, 2018. "Harmonic Analysis of Single-Phase Neutral-Point-Clamped Cascaded Inverter in Advanced Traction Power Supply System Based on the Big Triangular Carrier Equivalence Method," Energies, MDPI, vol. 11(2), pages 1-16, February.
    2. Jorge Lara & Lesedi Masisi & Concepcion Hernandez & Marco A. Arjona & Ambrish Chandra, 2021. "Novel Single-Phase Grid-Tied NPC Five-Level Converter with an Inherent DC-Link Voltage Balancing Strategy for Power Quality Improvement," Energies, MDPI, vol. 14(9), pages 1-22, May.
    3. Le Yu & Xu Peng & Chao Zhou & Shibin Gao, 2020. "Voltage-Balancing Strategy for Three-Level Neutral-Point-Clamped Cascade Converter under Sequence Smooth Modulation," Energies, MDPI, vol. 13(18), pages 1-18, September.

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