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An ALQR (Adaptive Linear Quadratic Regulation) method for the variable speed wind turbines system is proposed in this paper. The controller is designed for the wind turbine operating in the low wind speed (Region 2), in which the pitch of the blades is fixed at the optimal angle. Since the wind turbine is a nonlinear system, the Kalman filter and the adaptive method are implemented in the controller...
A novel inertial control method based on the torque limit control (TLC) is proposed in this study for the purpose of maximizing the temporary inertial response of permanent magnet synchronous generator-wind turbine generator (PMSG-WTG) over a wide range of variable wind speed conditions. To eliminate the secondary frequency drop issue during the rotor speed restoration, a small-scale battery energy...
This paper focuses on a control application of robust fault tolerant in Wind Energy Conversion System. A robust fault tolerant control structure for variable speed fixed pitch wind turbines is presented. The approach could keep the systems asymptotically stable against actuator failures and satisfy disturbance attenuation index prescribed. The frequency separation of the short-term and the long-term...
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