TY  - JOUR
AU  - El-Tous, Yousif 
PY  - 2008
TI  - Pitch Angle Control of Variable Speed Wind Turbine
JF  - American Journal of Engineering and Applied Sciences
VL  - 1
IS  - 2
DO  - 10.3844/ajeassp.2008.118.120
UR  - https://thescipub.com/abstract/ajeassp.2008.118.120
AB  - The aim of this study is to design a simple controller to maximize the extracted energy of wind turbines. In this study the pitch angle control of variable speed wind turbine is investigated. In particular, it concentrates on the extraction of maximum available energy, reduction of torque and output power variations, which gives stresses in the gearbox and mechanical structure. The control concentrates on separate wind speed internals as well as on whole wind speed region. It is found that the control structures varies substantially between the wind speed regions. Two different control systems are compared. The results show that pitch actuator with three levels of pitching speed have better response.