Blade Monitoring System_Shenzhen Qianhai IntelliUnion Technology Development Co., Lt

Blade Monitoring System

Dedicated sensors provide comprehensive blade monitoring. The system detects ice thickness in real time and guides turbine start/stop decisions, preventing impacts and unbalanced dynamic loads from ice shedding. It also precisely monitors early internal structural damage, surface cracking, fracture, lightning damage and localized surface erosion to protect operation and prevent blade failures from escalating.

Two Monitoring Solutions:

Triaxial Vibration Monitoring: Triaxial MEMS accelerometers acquire blade vibration, temperature and other data. Edge computing and AI diagnosis provide uninterrupted 24/7 online blade monitoring.

Fiber Bragg Grating Monitoring: ISen-L series products measure FBG sensor wavelengths corresponding to temperature, strain, acceleration and other parameters. Fast, high-precision interrogation supports long-term health monitoring such as wind turbine blade load measurement.

Monitoring Challenges

Manual Inspection Is Inefficient and Risky

Traditional tower-climbing and drone inspections depend on personnel. Work at height is hazardous, and rain, snow, typhoons and darkness limit coverage. Long inspection intervals can miss the best opportunity to address early defects.

Delayed Defect Detection Causes Severe Losses

Hidden microcracks and internal debonding are difficult to see. If they progress to fracture or tower strikes, losses can exceed RMB 1 million per turbine and may require shutdown of the entire wind farm.

Persistently High O&M Costs

Untargeted scheduled inspections cause excessive maintenance, while missed defects multiply repair costs and increase expenses for work at height and lifting equipment.

Fragmented Data Prevents Life Prediction

Without continuous data, accumulated blade fatigue cannot be quantified and remaining life is difficult to assess, leaving aging-turbine retrofits and new-turbine O&M without evidence.