Controlling Structural Vibration in Wind Turbine by H∞ Controlling Structural Vibration in Wind Turbine by H Control

Abstract

As wind turbine rated power increase, the potential danger of the vibration is bigger result of the rotor diameter and the hub height is longer and higher. Wind turbine vibrations will cause futile mechanical loads, such vibration loads maybe result to serious damage of wind turbine. In order to achieve vibration suppression, taking the uncertainty of turbulence which the operate environment of wind turbine into consider, control methods is utilized in wind turbine to achieve reduction of coupled load. The state space of wind turbine in cycle life is established. Effectiveness of controller based on the control in vibration control field is verified by GH-Bladed and Matlab. Simulation results and validation results show that the purposed control strategy is effective in terms of wind turbine tower vibration.