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Capacitor Voltage Ripple Suppression for Z-Source Wind Energy Conversion System

Author

Listed:
  • Shoudao Huang

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Yang Zhang

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Zhikang Shuai

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

Abstract

This paper proposes an improved pulse-width modulation (PWM) strategy to reduce the capacitor voltage ripple in Z-source wind energy conversion system. In order to make sure that Z-source capacitor voltage has symmetrical maximum and minimum amplitudes in each active state, the shoot-through time is divided into six unequal parts. According to the active state and zero state, the shoot-through time is rearranged to match the charging time and discharging time of the Z-source capacitors. Theoretically, it is indicated that the voltage ripple of the Z-source capacitors can be reduced effectively by means of the proposed PWM scheme. Finally, simulation and experimental results are given to verify the performance of the presented method.

Suggested Citation

  • Shoudao Huang & Yang Zhang & Zhikang Shuai, 2016. "Capacitor Voltage Ripple Suppression for Z-Source Wind Energy Conversion System," Energies, MDPI, vol. 9(1), pages 1-15, January.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:1:p:56-:d:62470
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    References listed on IDEAS

    as
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    4. Yifan Yu & Qianfan Zhang & Bin Liang & Xiaofei Liu & Shumei Cui, 2011. "Analysis of a Single-Phase Z-Source Inverter for Battery Discharging in Vehicle to Grid Applications," Energies, MDPI, vol. 4(12), pages 1-12, December.
    5. Hae Gwang Jeong & Ro Hak Seung & Kyo Beum Lee, 2012. "An Improved Maximum Power Point Tracking Method for Wind Power Systems," Energies, MDPI, vol. 5(5), pages 1-16, May.
    6. Tofael Ahmed & Tey Kok Soon & Saad Mekhilef, 2014. "A Single Phase Doubly Grounded Semi-Z-Source Inverter for Photovoltaic (PV) Systems with Maximum Power Point Tracking (MPPT)," Energies, MDPI, vol. 7(6), pages 1-24, June.
    Full references (including those not matched with items on IDEAS)

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    Cited by:

    1. Shoudao Huang & Yang Zhang & Sijia Hu, 2016. "Stator Current Harmonic Reduction in a Novel Half Quasi-Z-Source Wind Power Generation System," Energies, MDPI, vol. 9(10), pages 1-15, September.

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