Dual multivariable model-free adaptive individual pitch control for load reduction in wind turbines with actuator faults

2021 ◽  
Author(s):  
Jianshen Li ◽  
Shuangxin Wang
Keyword(s):  
Wind Turbines ◽  
Load Reduction ◽  
Actuator Faults ◽  
Multivariable Model ◽  
Pitch Control ◽  
Model Free ◽  
Individual Pitch Control

Fault-Tolerant Individual Pitch Control for Load Mitigation in Wind Turbines With Actuator Faults

2021 ◽  
Vol 68 (1) ◽  
pp. 532-543
Author(s):  
Hamed Badihi ◽  
Youmin Zhang ◽  
Pragasen Pillay ◽  
Subhash Rakheja
Keyword(s):  
Wind Turbines ◽  
Fault Tolerant ◽  
Actuator Faults ◽  
Pitch Control ◽  
Individual Pitch Control

Flexure pitch bearing concept for individual pitch control of wind turbines

Wind Energy ◽  
2017 ◽  
Vol 21 (2) ◽  
pp. 129-138 ◽  
Author(s):  
Michael Juettner ◽  
Alexander Hasse ◽  
Stephan Tremmel
Keyword(s):  
Wind Turbines ◽  
Pitch Control ◽  
Pitch Bearing ◽  
Individual Pitch Control

Load reduction for two-bladed horizontal-axis tidal current turbines based on individual pitch control

2020 ◽  
Vol 207 ◽  
pp. 107183
Author(s):  
Hongwei Liu ◽  
Yangjian Li ◽  
Yonggang Lin ◽  
Wei Li ◽  
Yajing Gu
Keyword(s):  
Tidal Current ◽  
Horizontal Axis ◽  
Load Reduction ◽  
Pitch Control ◽  
Individual Pitch Control

Individual Pitch Control for Wind Turbine Load Reduction Enhanced With Inter-Turbine Wake Modelling

2011 ◽  
Author(s):  
Zhongzhou Yang ◽  
Yaoyu Li ◽  
John E. Seem
Keyword(s):  
Wind Turbine ◽  
State Space ◽  
Wind Profile ◽  
State Space Models ◽  
Load Reduction ◽  
Pitch Control ◽  
Wake Interaction ◽  
Wake Model ◽  
Individual Pitch Control ◽  
Turbine Wake

Individual pitch control (IPC) for wind turbine load reduction in Region 3 operation is improved when wake interaction is considered. The Larsen wake model is applied for composing the rotor wind profile for downstream turbines under wake interaction. The wind profile of the turbine wake was generated by modifying the NREL’s TurbSim codes. The state-space models of wind turbine were obtained via linearization of wind turbine model available in the NREL’s aeroelastic design code FAST. In particular, in order to obtain more accurate state-space models, equivalent circular wind profile was generated so as to better determine the local pitch reference. Based on such models, IPC controllers were designed following the disturbance accommodating control (DAC) and periodic control framework. The simulation results showed that the turbine loads can be further reduced using the switching control scheme based on wake modeling, as compared with the generic DAC without wake consideration.

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