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Flicker Mitigation by Speed Control of Permanent Magnet Synchronous Generator Variable-Speed Wind Turbines

Author

Listed:
  • Weihao Hu

    (Department of Energy Technology, Aalborg University, Pontoppidanstraede 101, Aalborg DK-9220, Denmark)

  • Yunqian Zhang

    (Department of Energy Technology, Aalborg University, Pontoppidanstraede 101, Aalborg DK-9220, Denmark)

  • Zhe Chen

    (Department of Energy Technology, Aalborg University, Pontoppidanstraede 101, Aalborg DK-9220, Denmark)

  • Yanting Hu

    (Electrical Engineering of the Institute of Art, Design and Technology, Glyndwr University, Wrexham LL11 2AW, UK)

Abstract

Grid-connected wind turbines are fluctuating power sources that may produce flicker during continuous operation. This paper presents a simulation model of a MW-level variable speed wind turbine with a full-scale back-to-back power converter and permanent magnet synchronous generator (PMSG) developed in the simulation tool of PSCAD/EMTDC. Flicker emission of this system is investigated. The 3p (three times per revolution) power oscillation due to wind shear and tower shadow effects is the significant part in the flicker emission of variable speed wind turbines with PMSG during continuous operation. A new method of flicker mitigation by controlling the rotational speed is proposed. It smoothes the 3p active power oscillations from wind shear and tower shadow effects of the wind turbine by varying the rotational speed of the PMSG. Simulation results show that damping the 3p active power oscillation by using the flicker mitigation speed controller is an effective means for flicker mitigation of variable speed wind turbines with full-scale back-to-back power converters and PMSG during continuous operation.

Suggested Citation

  • Weihao Hu & Yunqian Zhang & Zhe Chen & Yanting Hu, 2013. "Flicker Mitigation by Speed Control of Permanent Magnet Synchronous Generator Variable-Speed Wind Turbines," Energies, MDPI, vol. 6(8), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:8:p:3807-3821:d:27559
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    Citations

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    Cited by:

    1. Paolo Castello & Carlo Muscas & Paolo Attilio Pegoraro & Sara Sulis, 2019. "PMU’s Behavior with Flicker-Generating Voltage Fluctuations: An Experimental Analysis," Energies, MDPI, vol. 12(17), pages 1-14, August.
    2. Jin Tan & Weihao Hu & Xiaoru Wang & Zhe Chen, 2013. "Effect of Tower Shadow and Wind Shear in a Wind Farm on AC Tie-Line Power Oscillations of Interconnected Power Systems," Energies, MDPI, vol. 6(12), pages 1-21, December.
    3. Shihua Xuan & Weihao Hu & Jun Yao & Zhe Chen, 2016. "Coordination Control of a Novel Wind Farm Configuration Including a Hydrogen Storage System and a Gas Turbine," Energies, MDPI, vol. 9(7), pages 1-16, July.

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