two lqri based blade pitch controls for wind turbines

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ID: 148947
2012
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Abstract
As the wind turbine size has been increasing and their mechanical components are built lighter, the reduction of the structural loads becomes a very important task of wind turbine control in addition to maximum wind power capture. In this paper, we present a separate set of collective and individual pitch control algorithms. Both pitch control algorithms use the LQR control technique with integral action (LQRI), and utilize Kalman filters to estimate system states and wind speed. Compared to previous works in this area, our pitch control algorithms can control rotor speed and blade bending moments at the same time to improve the trade-off between rotor speed regulation and load reduction, while both collective and individual pitch controls can be designed separately. Simulation results show that the proposed collective and individual pitch controllers achieve very good rotor speed regulation and significant reduction of blade bending moments.
Reference Key
nam2012energiestwo Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Yoonsu Nam;Sungsu Park
Journal acs combinatorial science
Year 2012
DOI
10.3390/en5061998
URL
http://www.mdpi.com/1996-1073/5/6/1998
Keywords
kalman filter lqritechnology

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