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PID Controller Design for a Wind Turbine with the Backlash Phenomenon

The vibrations of a wind turbine originate at various sources, such as, blade vibration, vibration in the gearbox due of backlash phenomenon, vibration at the generator generated by bearing faults. In this research work, we are interested in the compensation of the backlash phenomenon in gearbox of a wind turbine applied on an asynchronous generator. When the vibrations affecting wind turbines have a negative impact on its performance and the power quality and therefore approaches to effectively control turbines are sought by wind industry. A PID control is proposed in this study to anticipate the disturbing torque transmitted inside the dead zone in gearbox of wind turbine system. Simulation results applied to electromechanical actuator are given to illustrate the theoretical demonstrations.