The Simulation and Analysis of Mechatronic Control Systems for Wind Turbines
Date Issued
2008
Date
2008
Author(s)
Liu, Ming-Han
Abstract
The study is one of the subprojects under the project, The Blade Design and Analysis of Offshore Wind Turbines. The mechatronic control systems of the wind blades of wind turbines are investigated. We have developed the simulation and analysis of Mechatronic Control Systems for Wind Turbines”, the nonlinear models of the mechatronic control of wind blades of wind turbine systems, including aerodynamic of blade, hydraulic pitch control system, speed enlarger of planet gear generator and yaw system...etc, are derived in detail and solved by MATLAB/SIMULINK for realizing nonlinear dynamic simulation to implement the pitch control ,the variable speed control, the power control as well as the yaw control by means of combination of the results of the blades that is designed according to aerodynamics of the project “ The Blade Design and Analysis of Offshore Wind Turbines ”. The variable speed wind turbine systems is simulated. It can track maximum wind energy under rated wind speed by variable speed control and change pitch to adjust power above rated wind speed by pitch control.he novel mechanism of pitch control and a novel hydraulic pump-controlled servo systems driven with variable rotational speed driving system are designed and established. For that, a novel control strategy, adaptive fuzzy controller with self-tuning fuzzy sliding-mode compensation (AFC-STFSMC), is developed. The nonlinear models of the hydraulic pitch control system are derived in detail for realizing nonlinear dynamic simulation and regarded as the basis of the development in the future.
Subjects
wind turbine
hydraulic servo systems
pitch control
power control
rotational speed control
yaw control
blade
dynamic simulation
fuzzy sliding-mode control
Type
thesis
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