Model predictive control-based wind turbine blade pitch angle control for alleviation of frequency fluctuation in a smart grid

2014 ◽  
Author(s):  
Jonglak Pahasa ◽  
Issarachai Ngamroo
Keyword(s):  
Smart Grid ◽  
Model Predictive Control ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Predictive Control ◽  
Pitch Angle ◽  
Wind Turbine Blade ◽  
Frequency Fluctuation ◽  
Blade Pitch Angle

Frequency-Weighted Model Predictive Control of Trailing Edge Flaps on a Wind Turbine Blade

2013 ◽  
Vol 21 (4) ◽  
pp. 1105-1116 ◽  
Author(s):  
Damien Castaignet ◽  
Ian Couchman ◽  
Niels Kjolstad Poulsen ◽  
Thomas Buhl ◽  
Jens Jakob Wedel-Heinen
Keyword(s):  
Model Predictive Control ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Predictive Control ◽  
Wind Turbine Blade ◽  
Trailing Edge ◽  
Trailing Edge Flaps ◽  
Weighted Model

Design and Testing of a New Small Wind Turbine Blade

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Qiyue Song ◽  
William David Lubitz
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Pitch Angle ◽  
High Speed ◽  
Wind Turbine Blade ◽  
Horizontal Axis Wind Turbine ◽  
Small Wind Turbine ◽  
High Winds ◽  
Design And Testing ◽  
Blade Pitch Angle

A small wind turbine blade was designed using blade element momentum (BEM) method for a three bladed, fixed pitch 1 kW horizontal axis wind turbine. The new blades were fabricated, fit to a Bergey XL 1.0 turbine, and tested using a vehicle-based platform at the original designed pitch angle, plus with 5 deg and 9 deg of additional pitch. The new blades had better aerodynamic performance than the original Bergey XL 1.0 blades at high speed, but in some cases at lower speeds the original blades performed better. The results demonstrated that selecting the blade pitch angle on a rotor is a tradeoff between starting performance and power output in high winds. The BEM simulations were evaluated against the test data and demonstrated that the BEM simulations predicted the rotor performance with reasonable accuracy.

scholarly journals Innovative Controller Design for a 5MW Wind Turbine Blade

2018 ◽  
Vol 11 (4) ◽  
pp. 78
Author(s):  
Ranjeet Agarwala ◽  
Robert A. Chin
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Pitch Angle ◽  
Turbine Blades ◽  
Wind Turbine Blade ◽  
Pid Controllers ◽  
Specific Work ◽  
Contraction Ratio ◽  
Angle Tracking ◽  
Blade Pitch Angle

The development and evaluation of a nonlinear pitch controller for wind turbine blades and the design and modeling of an associated actuator and controller was examined. The pitch actuator and controller were modeled and analyzed using Pneumatically Actuated Muscles (PAMs) for actively pitching the wind turbine blade. PAMs are very light and have a high specific work and a good contraction ratio. Proportional Integral and Derivative (PID) controllers were envisaged for the wind turbine pitching system at the blade tip due to its routine usage in the wind turbine industry. Deployment of controllers enables effective pitch angle tracking for power abatement at various configurations. The controller was subjected to four pitch angle trajectory signals. PID controllers were tuned to achieve satisfactory performance when subjected to the test signal. Low pitch angle errors resulted in satisfactory blade pitch angle tracking. Deployment of these controllers enhances wind turbine performance and reliability. The data suggest that the pitch system and actuator that was modeled using PAMs and PID controllers is effective providing robust pitch angle trajectory tracking. The results suggest that the proposed design can be successfully integrated into the family of wind turbine blade pitch angle controller technologies.

scholarly journals State-Space Modeling and Performance Analysis of Variable-Speed Wind Turbine Based on a Model Predictive Control Approach

2017 ◽  
Vol 7 (2) ◽  
pp. 1436-1443 ◽  
Author(s):  
H. Bassi ◽  
Y. A. Mobarak
Keyword(s):  
Model Predictive Control ◽  
Wind Energy ◽  
Wind Turbine ◽  
State Space ◽  
Predictive Control ◽  
Pitch Angle ◽  
Variable Speed ◽  
Full Load ◽  
Partial Load ◽  
Variable Speed Wind Turbine

Advancements in wind energy technologies have led wind turbines from fixed speed to variable speed operation. This paper introduces an innovative version of a variable-speed wind turbine based on a model predictive control (MPC) approach. The proposed approach provides maximum power point tracking (MPPT), whose main objective is to capture the maximum wind energy in spite of the variable nature of the wind’s speed. The proposed MPC approach also reduces the constraints of the two main functional parts of the wind turbine: the full load and partial load segments. The pitch angle for full load and the rotating force for the partial load have been fixed concurrently in order to balance power generation as well as to reduce the operations of the pitch angle. A mathematical analysis of the proposed system using state-space approach is introduced. The simulation results using MATLAB/SIMULINK show that the performance of the wind turbine with the MPC approach is improved compared to the traditional PID controller in both low and high wind speeds.

Analysis of Structural Vibrations of Vertical Axis Wind Turbine Blades via Hamilton’s Principle — Part 3: Pitch Angle and Equilibrium State

2021 ◽  
pp. 2150070
Author(s):  
Jianyou Huang ◽  
Chia-Ou Chang ◽  
Chien-Cheng Chang
Keyword(s):  
Exact Solution ◽  
Equilibrium State ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Pitch Angle ◽  
Coupling Effect ◽  
Turbine Blades ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Vertical Axis Wind Turbine

Pitch angle is one of the most important parameters of wind turbine blade. This study is aimed to investigate the effect of the pitch angle on the deformation of a VAWT. Lagrangian mechanics and Euler’s beam theory are used to derive the motion equations of linear structural vibration for straight blade vertical axis wind turbine blade with the pitch angle [Formula: see text]. The complete equations of motion take account of the 4-DOF deformation of flexural–flexural–torsion–extension as well as the material damping. Vibration analysis of generalized displacement about the equilibrium state (GDAES) is carried out with respect to the displacement of the equilibrium state (DOES), which is separated from the motion of vibration. After simplifying the equilibrium equation of 4-DOF into 1-DOF system, the exact solution of displacement [Formula: see text] of the equilibrium state is derived. The correction [Formula: see text] of [Formula: see text] due to the pitch angle and the characteristics of [Formula: see text] with constant linear speed are analyzed. Furthermore, we investigate the coupling effect of lateral bending and axial extension of the blade on [Formula: see text] is analyzed. Finally, the exact solution of [Formula: see text] is verified by the central difference method.

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