scholarly journals Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault tolerant control

2017 ◽  
Vol 12 (3) ◽  
pp. 377-388 ◽  
Author(s):  
Hamed Habibi ◽  
Hamed Rahimi Nohooji ◽  
Ian Howard
Keyword(s):  
Wind Turbines ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Variable Speed ◽  
Variable Pitch ◽  
Power Maximization

A study on torsional vibration reduction for variable-speed variable-pitch wind turbines

2017 ◽  
Author(s):  
Hongzhong Zhu ◽  
Shigeo Yoshida ◽  
Hiroyuki Kajiwara ◽  
Yasuyuki Ogawa ◽  
Shigeyuki Nakada ◽  
...  
Keyword(s):  
Wind Turbines ◽  
Torsional Vibration ◽  
Vibration Reduction ◽  
Variable Speed ◽  
Variable Pitch

scholarly journals Fault Tolerant Control of Internal Faults in Wind Turbine: Case Study of Gearbox Efficiency Decrease

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Younes Ait El Maati ◽  
Lhoussain El Bahir ◽  
Khalid Faitah
Keyword(s):  
Steady State ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Operating Point ◽  
Rotor Speed ◽  
Integral Term ◽  
Internal Faults

This paper presents a method to control the rotor speed of wind turbines in presence of gearbox efficiency fault. This kind of faults happens due to lack of lubrication. It affects the dynamic of the principal shaft and thus the rotor speed. The principle of the fault tolerant control is to find a bloc that equalizes the dynamics of the healthy and faulty situations. The effectiveness decrease impacts on not only the dynamics but also the steady state value of the rotor speed. The last reason makes it mandatory to add an integral term on the steady state error to cancel the residual between the measured and operating point rotor speed. The convergence of the method is proven with respect to the rotor parameters and its effectiveness is evaluated through the rotor speed.

Fault tolerant control of six-phase induction generator for wind turbines

2017 ◽  
Author(s):  
Alin Pantea ◽  
Amine Yazidi ◽  
Franck Betin ◽  
Sebastien Carriere ◽  
Arnaud Sivert ◽  
...  
Keyword(s):  
Wind Turbines ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Induction Generator
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