A Load Control Method of VSCF Wind Turbines in the Low Wind Speed

2011 ◽  
Author(s):  
Gang Zheng ◽  
Jianxiao Zou ◽  
Gang Qin
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Control Method ◽  
Load Control ◽  
Low Wind Speed

Starting improvement of micro-wind turbines operating in low wind speed regions

2017 ◽  
Vol 14 (11) ◽  
pp. 868-877 ◽  
Author(s):  
Peyman Amir Nazmi Afshar ◽  
Mehdy Gooya ◽  
Seyed Vahid Hosseini ◽  
Abolfazl Pourrajabian
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Low Wind Speed

Airfoil design for large horizontal axis wind turbines in low wind speed regions

2020 ◽  
Vol 145 ◽  
pp. 2345-2357 ◽  
Author(s):  
Xingxing Li ◽  
Lei Zhang ◽  
Juanjuan Song ◽  
Fengjiao Bian ◽  
Ke Yang
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Horizontal Axis ◽  
Low Wind Speed ◽  
Horizontal Axis Wind Turbines

Design of Controls to Attenuate Loads in the Controls Advanced Research Turbine

2004 ◽  
Vol 126 (4) ◽  
pp. 1083-1091 ◽  
Author(s):  
Alan D. Wright ◽  
Mark J. Balas
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Control Method ◽  
Maximum Energy ◽  
Drive Train ◽  
Control Input ◽  
Pitch Control ◽  
Additional Control ◽  
Bending Modes ◽  
Turbine Speed

The wind industry seeks to design wind turbines to maximize energy production and increase fatigue life. To achieve this goal, we must design wind turbines to extract maximum energy and reduce component and system loads. This paper applies modern state-space control design methods to a two-bladed teetering-hub upwind machine located at the National Wind Technology Center. The design objective is to regulate turbine speed in region 3 (above rated wind speed) and enhance damping in several low-damped flexible modes of the turbine. The controls approach is based on the Disturbance Accommodating Control method and provides accountability for wind-speed disturbances. First, controls are designed with the single control input rotor collective pitch to stabilize the first drive-train torsion as well as the tower first fore-aft bending modes. Generator torque is then incorporated as an additional control input. This reduces some of the demand placed on the rotor collective pitch control system and enhances first drive train torsion mode damping. Individual blade pitch control is then used to attenuate wind disturbances having spatial variation over the rotor and effectively reduces blade flap deflections caused by wind shear.

Maximizing the wind power production of DFIG-based wind turbines at low wind speed operation

2008 ◽  
Author(s):  
Ali H. Kasem ◽  
Ehab F. El-Saadany ◽  
Hassan H. El-Tamaly ◽  
Mohamed A. A. Wahab
Keyword(s):  
Wind Speed ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Production ◽  
Low Wind Speed

A novel wind speed estimator-integrated pitch control method for wind turbines with global-power regulation

Energy ◽  
2017 ◽  
Vol 138 ◽  
pp. 816-830 ◽  
Author(s):  
Dongran Song ◽  
Jian Yang ◽  
Mei Su ◽  
Anfeng Liu ◽  
Zili Cai ◽  
...  
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Control Method ◽  
Pitch Control ◽  
Global Power ◽  
Power Regulation ◽  
Speed Estimator
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