Aerodynamic Modeling Research of Wind Turbine Suitable for Individual Pitch Control

Abstract:

Momentum theory model which was widely used in pitch control cant calculate wind turbine load, so it can't meet pitch control research needs of large-scale wind turbine. In this paper, the traditional model based on momentum theory firstly was improved to be able to calculate load under some hypothesis. Then the wind turbine model suitable for individual pitch control was built based on blade element theory. And wind shear and tower shadow on load of wind turbine was calculated and analyzed. Finally, the model was simulated in the turbulent flow conditions and load was analyzed by Bladed. Simulations indicate that the model built in the paper can be used in simulation and verification of individual pitch control, and the conclusions drawn by load analysis can provide theoretic basis and the reference standard for individual pitch control strategy.

• Periodical: Advanced Materials Research (Volume 823)
• Pages: 175-179
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.823.175
• Online since: October 2013
• Authors: Feng Gao
• Keywords: Blade Element Theory, Load, Momentum Theory, Tower Shadow, Wind Shear, Wind Turbine (WT)

References

[1] Nourdine S, Camblong H, Vechiu I, et al. Comparison of wind turbine LQG controllers using individual pitch control to alleviate fatigue loads: Proceedings of 18th Mediterranean Conference on Control & Automation(2010), pp.1591-1596.

DOI: 10.1109/med.2010.5547822

[2] M. Geyler, Individual blade pitch control design for load reduction on large wind turbines: European Wind Energy Conference(2007), pp.82-86.

[3] M. Jelavic, V. Petrovic, N. Peric, Individual pitch control of wind turbine based on loads estimation: 34th Annual Conference of IEEE(2008), pp.228-234.

DOI: 10.1109/iecon.2008.4757957

[4] Yonggang Lin, Wei Li, Xiaobo Chen, Haigang Gu and Hangye Ye, The research on large scale wind turbine individual blade pitch control system: submitted to Acta Energiae Solaris Sinica, vol. 26, no. 6(2005), pp.780-786.

[5] Yan HU, Yue LIU, Xingjia YAO and Qingding GUO, Multi-stage weight coefficient individual variable-pitch control of mega-watt class wind turbine system: submitted to Journal of Shenyang University of Technology, vol. 31, no. 6(2009), pp.633-638.

[6] K Thomsen, H Madsen, A New Simulation Method for Turbines in Wake—Applied to Extreme Response during Operation: submitted to Wind Energy, no. 8(2005), p.35 –47.

DOI: 10.1002/we.130

[7] Tony Burton, David Sharpe and Nick Jenkins: Wind energy handbook (John Wiley & Sons Ltd, England 2008).