The Study of Individual Pitch Control on Reducing The Load Fluctuation of Tower Shadow

Wei Li; Hong Li Sun; Zuo Xia Xing; Lei Chen

doi:10.4028/www.scientific.net/AMR.347-353.2260

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 347-353The Study of Individual Pitch Control on Reducing...

The Study of Individual Pitch Control on Reducing The Load Fluctuation of Tower Shadow

Abstract:

Load fluctuation of wind turbine under tower shadow was researched，introducing individual pitch control. First，establish the linear time-varying model of the rotor，make it into the linear time invariant model through Coleman transformation. Then，based on this model，achieving the design of individual pitch system with PID controller. Comparing the loads of wind turbine under tower shadow between individual pitch control and collective pitch control and analysing the fatigue damage of wind turbine through rainflow cycle counting.The result shows that load fluctuation of wind turbine using the individual pitch control under tower shadow has better effect and reduces the effect of tower shadow，extend the working life of wind turbine.

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Periodical:

Advanced Materials Research (Volumes 347-353)

Pages:

2260-2267

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.347-353.2260

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Online since:

October 2011

Authors:

Wei Li, Hong Li Sun, Zuo Xia Xing, Lei Chen

Keywords:

Coleman Transformation, Fluctuation, Individual Pitch Control, Load, PID Control, Tower Shadow

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