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Effect of Tower Shadow and Wind Shear in a Wind Farm on AC Tie-Line Power Oscillations of Interconnected Power Systems

Author

Listed:
  • Jin Tan

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

  • Weihao Hu

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

  • Xiaoru Wang

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

  • Zhe Chen

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

Abstract

This paper describes a frequency domain approach for evaluating the impact of tower shadow and wind shear effects (TSWS) on tie-line power oscillations. A simplified frequency domain model of an interconnected power system with a wind farm is developed. The transfer function, which relates the tie-line power variation to the mechanical power variation of a wind turbine, and the expression of the maximum magnitude of tie-line power oscillations are derived to identify the resonant condition and evaluate the potential risk. The effects of the parameters on the resonant magnitude of the tie-line power are also discussed. The frequency domain analysis reveals that TSWS can excite large tie-line power oscillations if the frequency of TSWS approaches the tie-line resonant frequency, especially in the case that the wind farm is integrated into a relatively small grid and the tie-line of the interconnected system is weak. Furthermore, the results of the theoretical analysis are validated through time domain simulations conducted in the two-area four-generator system and the Western Electric Coordinating Council 127 bus system.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:12:p:6352-6372:d:31037
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    References listed on IDEAS

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    1. 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.
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    Cited by:

    1. Shuting Wan & Lifeng Cheng & Xiaoling Sheng, 2015. "Effects of Yaw Error on Wind Turbine Running Characteristics Based on the Equivalent Wind Speed Model," Energies, MDPI, vol. 8(7), pages 1-16, June.
    2. Ping Ju & Yongfei Liu & Feng Wu & Fei Dai & Yiping Yu, 2016. "General Forced Oscillations in a Real Power Grid Integrated with Large Scale Wind Power," Energies, MDPI, vol. 9(7), pages 1-10, July.
    3. Ahmed G. Abo-Khalil & Saeed Alyami & Khairy Sayed & Ayman Alhejji, 2019. "Dynamic Modeling of Wind Turbines Based on Estimated Wind Speed under Turbulent Conditions," Energies, MDPI, vol. 12(10), pages 1-25, May.
    4. Xiaoling Sheng & Shuting Wan & Kanru Cheng & Xuan Wang, 2020. "Research on the Fault Characteristic of Wind Turbine Generator System Considering the Spatiotemporal Distribution of the Actual Wind Speed," Energies, MDPI, vol. 13(2), pages 1-16, January.

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