Results 1 to 10 of about 285,442 (311)

Toward control co-design of utility-scale wind turbines: Collective vs. individual blade pitch control

Energy Reports, 2023
A large-eddy simulation framework has been coupled with controller modules to systematically investigate the impacts of collective (CPC) and individual (IPC) pitch control strategies on utility-scale wind turbine energy production and fatigue loads. Wind
Christian Santoni, Ali Khosronejad, Peter Seiler, Fotis Sotiropoulos   +3 more
doaj   +5 more sources

Incremental feedforward collective pitch control method for wind turbines

Frontiers in Energy Research, 2023
In recent years, wind turbines are becoming larger, which will exacerbate the complexity of loads Complex load change affect the output power quality and wind turbine service life so that must be studied.
Qinwei Wang, Zeli Du, Wenting Chen, Wenting Chen, Wenting Chen, Jiarui Zhang, Jiarui Zhang, Yonggang Lin, Hongwei Liu   +8 more
doaj   +3 more sources

Helicopter Landing Trajectory Optimization after Tail Rotor Control Failure in Different Collective Pitch [PDF]

Xibei Gongye Daxue Xuebao, 2019
This paper studies helicopter optimal landing and control procedure after tail rotor control failure (TRCF) in different collective pitch. The optimal control problem of landing after tail rotor control failure was solved numerically by direct multiple ...
Xufei Yan, Renliang Chen, Ji Xin
doaj   +3 more sources

Adaptive super-twisting control of floating wind turbines with collective blade pitch control

IFAC-PapersOnLine, 2019
Abstract This paper proposes an adaptive super-twisting controller for floating wind turbine based on collective blade pitch control. This adaptive second order sliding mode control scheme being efficient for systems with uncertainties and external perturbations, which is compared with the traditional gain scheduled PI (GSPI) controller.
Zhang, C., Gutierrez, S.V., Plestan, Franck, de León-Morales, J.   +3 more
semanticscholar   +5 more sources

Individual/collective blade pitch control of floating wind turbine based on adaptive second order sliding mode

Ocean Engineering, 2021
Abstract A new control strategy based on adaptive second order sliding mode approach is applied to a floating wind turbine system in the above rated region. This adaptive controller is well adapted to a highly nonlinear system as floating wind turbine, and can be easily implemented with very reduced knowledge of modeling.
Cheng Zhang, Franck Plestan
semanticscholar   +4 more sources

Collective Pitch Control of Wind Turbines Using Stochastic Disturbance Accommodating Control [PDF]

Wind Engineering, 2013
Fidelity of a plant's dynamic model is a concern in any controller design process. In this context, fidelity refers to which dynamics of the plant needs to be included in the control model and which dynamics can be left out or approximated. Studies on wind turbine control have shown that modelling error due to the unmodeled dynamics can lead to ...
Girsang, Irving Paul, Dhupia, Jaspreet S.   +1 more
openaire   +4 more sources

A Novel Composite Pitch Control Scheme for Floating Offshore Wind Turbines with Actuator Fault Consideration

Journal of Marine Science and Engineering, 2023
It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is
Shuang Liu, Yaozhen Han, Ronglin Ma, Mingdong Hou, Chao Kang   +4 more
doaj   +2 more sources

Collective Pitch Feedforward Control of Floating Wind Turbines Using Lidar [PDF]

Journal of Ocean and Wind Energy, 2015
In this work a collective pitch feedforward controller for floating wind turbines is presented. The feedforward controller provides a pitch rate update to a conventional feedback controller based on a wind speed preview. The controller is designed similar to the one for onshore turbines, which has proven its capability to improve wind turbine control ...
Schlipf, David, Simley, Eric, Lemmer, Frank, Pao, Lucy, Cheng, Po Wen   +4 more
openaire   +2 more sources

Wind Turbine Collective and Individual Pitch Control Using Quantitative Feedback Theory

Volume 1: Aerospace Applications; Advances in Control Design Methods; Bio Engineering Applications; Advances in Non-Linear Control; Adaptive and Intelligent Systems Control; Advances in Wind Energy Systems; Advances in Robotics; Assistive and Rehabilitation Robotics; Biomedical and Neural Systems Modeling, Diagnostics, and Control; Bio-Mechatronics and Physical Human Robot; Advanced Driver Assistance Systems and Autonomous Vehicles; Automotive Systems, 2017
Individual pitch control is an innovative technique in wind turbine control. It has the potential of reducing the asymmetric mechanical loads on the blades in large multi-megawatt turbines. As the mechanical fatigue is reduced, the lifetime of the turbine can be significantly extended.
Laura H. Wheeler, Mario Garcia-Sanz
openaire   +3 more sources

Addressing Calibration Challenges for Large-Stroke Blade Pitch Control in Tiltrotor Aircraft via an Improved Cubic Polynomial Fitting Algorithm

Aerospace
Tiltrotor aircraft, due to their vertical takeoff and landing capability and efficient high-speed cruise performance, are increasingly valuable in both modern military and civilian applications.
Hang Feng, Shangyu Li, Kaicheng Li, Junquan Chen   +3 more
doaj   +2 more sources