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Title |
Sensing Technique of Mass Imbalance for Condition Monitoring of Wind Turbine Blade
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Keywords |
질량불균형 ; 풍력발전기 ; 상태모니터링 ; 횡방향 진동 ; 실효값 ; Mass imbalance ; Wind turbine ; Condition monitoring ; Transverse oscillation ; RMS |
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Abstract |
A method to detect rotor mass imbalance, which is one of the typical faults of wind turbine, is presented for effective condition monitoring of wind turbine. Dynamic analysis for a three-bladed horizontal-axis wind turbine was carried out with adding mass to a blade for inflicting the rotor mass imbalance. It has been found that the added mass induce a resulting centrifugal force to nacelle and this leads to a transverse (relative to the rotor axis) oscillation of the nacelle. It has been also found that the amplitude of the oscillation is almost linearly increased as the added mass is increased.
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