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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
    1. Jui-Ho Chen & Weir Hung, 2015. "Blade Fault Diagnosis in Small Wind Power Systems Using MPPT with Optimized Control Parameters," Energies, MDPI, vol. 8(9), pages 1-20, August.
    2. Jui-Ho Chen & Her-Terng Yau & Weir Hung, 2014. "Design and Study on Sliding Mode Extremum Seeking Control of the Chaos Embedded Particle Swarm Optimization for Maximum Power Point Tracking in Wind Power Systems," Energies, MDPI, vol. 7(3), pages 1-15, March.
    3. Yun-Su Kim & Il-Yop Chung & Seung-Il Moon, 2015. "Tuning of the PI Controller Parameters of a PMSG Wind Turbine to Improve Control Performance under Various Wind Speeds," Energies, MDPI, vol. 8(2), pages 1-20, February.
    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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