Multivariable lqg optimal individual pitch control of large-scale wind turbine

被引：0

作者：

Tian, Yanfeng ^{[1
]}

Wang, Zhe ^{[2
]}

Zhang, Chunming ^{[2
]}

机构：

[1] School of New Energy Engineering, Shenyang University of Technology, Shenyang 110021, China

[2] School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2012年 / 33卷 / 11期

关键词：

Disturbance compensation - Feed-forward compensation - Individual pitch control - Large scale wind turbines - Linear quadratic Gaussian - LQG control - Multivariable controller - Optimal controls;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

For the imbalance load problem of large-scale wind turbine, a multi-variable Linear Quadratic Gaussian function (LQG) optimal individual pitch control strategy based on feedforward-feedback structure was proposed. The multivariable controller was composed by a LQG optimal controller and a forwardfeed disturbance compensation controller based on wind speed signal estimation. The multivariable LQG optimal feedback controller was designed for the random uncertainty, while the feedforward compensation controller focuses on reducing the wind wheel torque ripple caused by the low frequency components of wind speed.An extended Kalman filter was designed to obtain the no error estimation of the system states, the pitch and yaw direction component of the effective wind speed. The simulation results show that multivariable LQG optimal individual pitch control strategy has better load shedding effect than the traditional scalar PI individual pitch control.

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页码：2010 / 2015

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