Health Monitoring of Wind Turbine Blades Based on FBG Strain Sensors for Efficient Wind Power Generation

Wind power generation is a renewable energy technology that utilizes wind power to generate electricity. It captures the kinetic energy of wind through large wind turbines and converts it into electricity. Wind farms are usually built in areas far from the city center, and wind turbine towers are built very high, making maintenance of wind turbine blades very difficult. Obtaining the operating status of wind turbine blades online through optical fiber and remotely transmitting the data to the wind power monitoring center for analysis and processing is an effective maintenance solution for wind power systems, which can significantly reduce the operating cost of wind power as a renewable energy source. Fiber Bragg Grating (FBG) sensing technology, as an emerging strain measurement technology, has many advantages such as long lifespan, simple wiring, anti-electromagnetic interference, and flexible structure. It has broad application prospects in structural life assessment and monitoring technology. This article analyzes the principle of wind turbine blade health status based on fiber optic grating strain sensors, analyzes the characteristics of wind turbine blade health status measurement using FBG sensors, establishes a theoretical model for sensor structure measurement, and designs the sensor structure and installation system according to the measurement requirements of wind turbine blades. And create a theoretical model of the sensor installation structure. On this basis, the installation position and data processing method of the sensor during blade strain measurement are analyzed as the theoretical basis for measuring the health status of fan blades using adhesive fiber optic grating strain sensors.