Alleviating the Tower Mechanical Load of Multi-MW Wind Turbines with LQR Control

Yoonsu Nam; Pham Trung Kien; Yo-Han La

Alleviating the Tower Mechanical Load of Multi-MW Wind Turbines with LQR Control

Yoonsu Nam

Pham Trung Kien

Yo-Han La

Vol. 13, No. 6, pp. 1024-1031, Nov. 2013

10.6113/JPE.2013.13.6.1024

LQR control

Multi-MW size wind turbine

Variable speed variable pitch wind turbine

Wind energy conversion system

PDF

Abstract

This paper addresses linear quadratic regulation (LQR) for variable speed variable pitch wind turbines. Because of the inherent nonlinearity of wind turbines, a set of operating conditions is identified and then a LQR controller is designed for each of the operating points. The feedback controller gains are then interpolated linearly to get a control law for the entire operating region. In addition, the aerodynamic torque and effective wind speed are estimated online to get the gain-scheduling variable for implementing the controller. The potential of this method is verified through simulation with the help of MATLAB/Simulink and GH Bladed. The performance and mechanical load when using LQR are also compared with those obtained when using a PI controller.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

Y. Nam, P. T. Kien, Y. La, "Alleviating the Tower Mechanical Load of Multi-MW Wind Turbines with LQR Control," Journal of Power Electronics, vol. 13, no. 6, pp. 1024-1031, 2013. DOI: 10.6113/JPE.2013.13.6.1024.

[ACM Style]

Yoonsu Nam, Pham Trung Kien, and Yo-Han La. 2013. Alleviating the Tower Mechanical Load of Multi-MW Wind Turbines with LQR Control. Journal of Power Electronics, 13, 6, (2013), 1024-1031. DOI: 10.6113/JPE.2013.13.6.1024.