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Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

Author

Listed:
  • Yufeng Tang

    (School of Automation, Central South University, Changsha 410083, China)

  • Zhiyong Li

    (School of Automation, Central South University, Changsha 410083, China)

  • Yougen Chen

    (School of Automation, Central South University, Changsha 410083, China)

  • Renyong Wei

    (School of Automation, Central South University, Changsha 410083, China)

Abstract

The double-frequency (2ω) power flows through the DC side of the single-phase quasi-Z-source inverter (QZSI) leads to the 2ω voltage ripple of capacitors and 2ω current ripple of inductors. This paper proposes a ripple vector cancellation modulation strategy (RVCMS) based on the thought of ripple vector cancellation. By analyzing the mechanism of ripple generation and transmission, we can obtain a variation of a shoot-through duty cycle to generate a compensated 2ω ripple used to cancel the 2ω current ripple of inductors caused by the 2ω ripple of DC link current, and the 2ω compensated variation of a shoot-through duty cycle with a specific amplitude and phase is added to the constant shoot-through duty cycle. Finally, simulation and experimental results demonstrate the correctness and effectiveness of the proposed modulation strategy for the single-phase QZSI.

Suggested Citation

  • Yufeng Tang & Zhiyong Li & Yougen Chen & Renyong Wei, 2019. "Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter," Energies, MDPI, vol. 12(17), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3344-:d:262349
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    References listed on IDEAS

    as
    1. Minh-Khai Nguyen & Youn-Ok Choi, 2017. "Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters," Energies, MDPI, vol. 10(4), pages 1-14, April.
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    Cited by:

    1. Zhiyong Li & Shiping Pu & Yougen Chen & Renyong Wei, 2020. "An Integration Optimization Strategy of Line Voltage Cascaded Quasi-Z-Source Inverter Parameters Based on GRA-FA," Energies, MDPI, vol. 13(17), pages 1-24, August.

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