In-service wind turbine blade monitoring

摘要: Monitoring wind turbine blades for damage onset and progression detection in efficient and effective ways can be one of the most challenging tasks for wind site managers, technicians, and fleet engineers. Blades are susceptible to damage from a variety of causes and sources, ranging from environmental factors such as lightning to normal wear-and-tear leading to worsening leading edge erosion, crack propagation and internal delaminations. With these defects often out of sight, particularly with inspections only being conducted once a year or less, staying fully aware of true blade integrity is often not as efficient a process as it could be. Acoustic Emission (AE) technology is a passive non-destructive monitoring technique that has been successfully used developed to help solve some of the most challenging tasks in the wind energy sector and helping customers stay aware of the integrity of wind turbine blades …