Individual Pitch Control for Load Reduction Based on Norm Theory

Abstract:

As the capacity of wind turbine increases, unsteady blade loads and performance caused by asymmetrical effects like turbulence, wind shear and tower shadow lead to fatigue loads which seriously affect wind turbine life cycle. This paper focused on wind turbine fatigue load response characteristics, built the multiple input multiple output linearized matrix model, introduced individual pitch control algorithm for optimized disturbance control based on norm theory. Modeling, simulation and verification of the control algorithm are conducted in Matlab. The investigation is conducted based on a 2MW doubly-fed wind turbine. By comparing the results of wind turbine deflection rate and angle deflection rate to collective pitch control method, it shows the individual pitch control algorithm can significantly reduce wind turbine fatigue load, and the control effect is superior to traditional control algorithm.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 1879-1883
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.1879
• Online since: October 2013
• Authors: Ying Deng, Dan Zhang*, Feng Zhou, De Tian
• Keywords: Disturbance Control, Individual Pitch Control, Load Reduction, Norm Theory

References

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