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In large horizontal axis wind turbines blade pitch control is important in order to keep the structural loads within design limits at high wind speed. The system dynamics is highly oscillatory along with the time delay in the hydraulic pressure driven pitch control system and in certain turbine configurations and operating conditions, it may have inverse response dynamics which make the system further...
Modern, large wind turbines require multiobjective, robust controllers in order to fulfill all the control objectives. In the presented work linear matrix inequality (LMI) approach to H∞ control and linear parameter-varying (LPV) theory are utilized to design multivariable, adaptive controller which aims at improving rotational speed control and at reducing tower structural loads. Designed H∞ pitch...
Pitch control system plays an important role in large wind turbine generator (LWTG) because of the direction and intensity of wind is changing every moment. Therefore, the system of pitch control is difficult to be set up the tuning parameters of controller. Conventional PID controller is not suit for all operating point. Because, tuning parameters of conventional PID controller are not consistently...
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